1971 Úrvalsdeild Season

56 games · 2 promotion-playoff teams

Final

Champion

Keflavik IF

20 points · 3rd Title

Last Title: 1969.0

Relegated

IBA Akureyri

9 pts

Biggest Overachiever

IBV Vestmannaeyjar

5.01 points above expected

20 points · 14.99 expected points

Biggest Disappointment

IBA Akureyri

4.69 points below expected

9 points · 13.69 expected points

League Table

The final standings for the season. vsSim shows actual points minus the simulation's mean — positive means the team overachieved against the model, negative means they underperformed.

# Team GP W D L Pts GF GA GD SimPts vsSim
1 Keflavik IF Champion 14 8 4 2 20 32 17 +15 15.38 +4.62
2 IBV Vestmannaeyjar 14 9 2 3 20 37 19 +18 14.99 +5.01
3 Fram Reykjavik 14 7 1 6 15 29 25 +4 15.44 -0.44
4 IA Akranes 14 6 2 6 14 27 27 0 14.16 -0.16
5 Valur Reykjavik 14 6 2 6 14 24 25 -1 13.70 +0.30
6 KR Reykjavik 14 3 4 7 10 13 20 -7 13.05 -3.05
7 Breidablik 14 4 2 8 10 12 31 -19 11.59 -1.59
8 IBA Akureyri Relegated 14 4 1 9 9 21 31 -10 13.69 -4.69

Tiebreakers

  • Keflavik IF defeated IBV Vestmannaeyjar 4-0 in a playoff to determine the champion.

Form

Each team's 5-game rolling points-per-game across the season. Hot streaks push above the dashed 1.5 PPG reference line; cold spells drop below. Each team gets a distinct color; the legend below the plot lets you read off which line is which. (First 4 games of each team have no rolling window, so the lines start at game 5.)

League Race

Cumulative points across the season for each team. Highlighted teams are drawn in color (top finishers for the Title Race, bottom finishers for the Relegation Race); the rest of the league appears in light gray as context. Switch views with the buttons below.

Promotion Playoff

The path the promotion-playoff teams took to determine the final promotion spot. The full Promotion / Relegation tab has matchup heatmaps and round-by-round simulation outcomes.

Finals

Keflavik IF 4
IBV Vestmannaeyjar 0

Season Summary

Every team's regular-season finish compared against 100,000 simulations. Click any column header to sort. Luck is the team's actual points minus the sim's mean — positive means the team beat the model. Percentile is where the actual result fell in the team's sim distribution (e.g. 90% = the team did this well or better in only 10% of sims).

Team Elo Points Avg Luck Percentile Min 5th Q1 Median Q3 95th Max
Keflavik IF 1091 20 15.38 +4.62 94.2% 3 10 13 15 18 21 28
IBV Vestmannaeyjar 1037 20 14.99 +5.01 95.9% 2 10 13 15 17 20 26
Fram Reykjavik 1018 15 15.44 -0.44 50.7% 4 10 13 15 18 21 26
IA Akranes 994 14 14.16 -0.16 54.3% 3 9 12 14 16 19 26
IBA Akureyri 956 9 13.69 -4.69 9.3% 3 8 12 14 16 19 25
Valur Reykjavik 955 14 13.70 +0.30 60.2% 3 8 12 14 16 19 25
KR Reykjavik 952 10 13.05 -3.05 20.9% 1 8 11 13 15 18 25
Breidablik 884 10 11.59 -1.59 37.9% 1 7 9 11 14 17 22

Head-to-Head

Each cell shows a team's record in that matchup (row vs column, formatted W-D-L) with the model's expected points on the line below. Navy-tinted cells mean the team beat the model's expectations by more than one point in that matchup; gold-tinted cells mean they fell short by the same margin.

Beat expectations Fell short Within expectations
Team BRE FR IA IA IV KR KI VR
Breidablik
1-0-1
2.07
0-1-1
2.42
1-0-1
2.49
0-0-2
1.88
1-1-0
2.59
0-0-2
2.31
1-0-1
2.48
Fram Reykjavik
1-0-1
3.59
2-0-0
2.82
1-1-0
3.16
1-0-1
3.12
1-0-1
3.27
1-0-1
2.94
0-0-2
3.08
IA Akranes
1-1-0
3.25
0-0-2
2.85
2-0-0
2.72
0-0-2
2.76
1-1-0
3.01
1-0-1
2.57
1-0-1
2.93
IBA Akureyri
1-0-1
3.17
0-1-1
2.51
0-0-2
2.95
0-0-2
2.56
1-0-1
2.99
0-0-2
2.54
2-0-0
2.63
IBV Vestmannaeyjar
2-0-0
3.79
1-0-1
2.55
2-0-0
2.91
2-0-0
3.11
1-0-1
3.13
0-1-1
2.73
1-1-0
3.08
KR Reykjavik
0-1-1
3.08
1-0-1
2.40
0-1-1
2.66
1-0-1
2.68
1-0-1
2.54
0-2-0
2.23
0-0-2
2.83
Keflavik IF
2-0-0
3.36
1-0-1
2.73
1-0-1
3.09
2-0-0
3.12
1-1-0
2.93
0-2-0
3.44
1-1-0
3.22
Valur Reykjavik
1-0-1
3.19
2-0-0
2.59
1-0-1
2.74
0-0-2
3.03
0-1-1
2.58
2-0-0
2.84
0-1-1
2.45

Points vs. Goals Scored, Allowed, and Differential

Points plotted against goals scored, allowed, and differential. Use the buttons to switch views; hover a team for exact values. The table gives each fit's R² and slope (the change in points per 10 goals).

Fit Metrics

Slope
Scored 0.81 +4.4
Allowed 0.54 -6.0
Differential 0.91 +3.3

Scoreline Distribution

Percentage of games ending with each combination of team-goals (rows) and opponent-goals (columns). The diagonal shows draws; cells below the diagonal are wins from the row team's perspective, cells above are losses. Marginal totals on the right and bottom show how often each goal count occurred regardless of opponent. Use the picker to switch between the league-wide view and any individual team.

↓ Scored | Allowed →012345+Total
03.57%7.14%4.46%1.79%1.79%2.68%21.43%
17.14%7.14%8.04%4.46%2.68%0.89%30.36%
24.46%8.04%3.57%3.57%0.89%0.89%21.43%
31.79%4.46%3.57%1.79%2.68%14.29%
41.79%2.68%0.89%5.36%
5+2.68%0.89%0.89%2.68%7.14%
Total21.43%30.36%21.43%14.29%5.36%7.14%100%

Summary Statistics

Scored Allowed Difference
Mean 1.74 1.74 +0.00
SD 1.47 1.47 2.19
CV 0.85 0.85
Max 6 6 +6
Min 0 0 -6

Games Played: 56

↓ Scored | Allowed →012345+Total
07.14%7.14%14.29%7.14%14.29%50.00%
114.29%7.14%21.43%
27.14%7.14%7.14%21.43%
37.14%7.14%
4
5+
Total28.57%14.29%14.29%14.29%14.29%14.29%100%

Summary Statistics

Scored Allowed Difference
Mean 0.86 2.21 -1.36
SD 1.03 2.01 2.37
CV 1.20 0.91
Max 3 6 +2
Min 0 0 -6

Games Played: 14

↓ Scored | Allowed →012345+Total
07.14%7.14%
17.14%14.29%7.14%28.57%
214.29%7.14%7.14%7.14%35.71%
37.14%7.14%14.29%
47.14%7.14%
5+7.14%7.14%
Total28.57%14.29%28.57%14.29%7.14%7.14%100%

Summary Statistics

Scored Allowed Difference
Mean 2.07 1.79 +0.29
SD 1.33 1.58 2.20
CV 0.64 0.88
Max 5 5 +4
Min 0 0 -3

Games Played: 14

↓ Scored | Allowed →012345+Total
07.14%7.14%14.29%
17.14%7.14%7.14%14.29%35.71%
27.14%7.14%
314.29%7.14%7.14%7.14%35.71%
4
5+7.14%7.14%
Total14.29%35.71%14.29%21.43%7.14%7.14%100%

Summary Statistics

Scored Allowed Difference
Mean 1.93 1.93 +0.00
SD 1.44 1.49 2.25
CV 0.75 0.77
Max 5 5 +5
Min 0 0 -4

Games Played: 14

↓ Scored | Allowed →012345+Total
014.29%7.14%21.43%
17.14%14.29%7.14%7.14%35.71%
27.14%7.14%7.14%7.14%28.57%
37.14%7.14%
4
5+7.14%7.14%
Total21.43%14.29%28.57%7.14%14.29%14.29%100%

Summary Statistics

Scored Allowed Difference
Mean 1.50 2.21 -0.71
SD 1.34 1.76 2.46
CV 0.90 0.80
Max 5 5 +5
Min 0 0 -4

Games Played: 14

↓ Scored | Allowed →012345+Total
07.14%7.14%
114.29%14.29%7.14%35.71%
27.14%7.14%
37.14%7.14%14.29%
414.29%14.29%
5+7.14%7.14%7.14%21.43%
Total21.43%57.14%14.29%7.14%100%

Summary Statistics

Scored Allowed Difference
Mean 2.64 1.36 +1.29
SD 1.91 1.39 2.27
CV 0.72 1.03
Max 6 5 +6
Min 0 0 -2

Games Played: 14

↓ Scored | Allowed →012345+Total
014.29%7.14%14.29%35.71%
17.14%14.29%14.29%7.14%42.86%
27.14%7.14%14.29%
37.14%7.14%
4
5+
Total21.43%28.57%35.71%14.29%100%

Summary Statistics

Scored Allowed Difference
Mean 0.93 1.43 -0.50
SD 0.92 1.02 1.09
CV 0.99 0.71
Max 3 3 +1
Min 0 0 -2

Games Played: 14

↓ Scored | Allowed →012345+Total
07.14%7.14%
114.29%7.14%7.14%28.57%
214.29%7.14%21.43%
314.29%7.14%21.43%
47.14%7.14%14.29%
5+7.14%7.14%
Total28.57%35.71%21.43%14.29%100%

Summary Statistics

Scored Allowed Difference
Mean 2.29 1.21 +1.07
SD 1.44 1.05 1.73
CV 0.63 0.87
Max 5 3 +4
Min 0 0 -2

Games Played: 14

↓ Scored | Allowed →012345+Total
014.29%7.14%7.14%28.57%
17.14%7.14%14.29%
27.14%14.29%7.14%7.14%35.71%
37.14%7.14%
47.14%7.14%
5+7.14%7.14%
Total7.14%42.86%28.57%14.29%7.14%100%

Summary Statistics

Scored Allowed Difference
Mean 1.71 1.79 -0.07
SD 1.54 1.25 1.98
CV 0.90 0.70
Max 5 5 +2
Min 0 0 -5

Games Played: 14

Home-Field Advantage Edge

The simulation applies the same home-field boost to every game across the league, so the per-game home win probabilities bake in the model's idea of HFA. For each team, we sum expected points at home and compare to actual home points, and the same on the road. The bar shows (home points above expected) minus (away points above expected). A tall positive bar means the team's home/road split exceeded what the model predicted — a real fortress effect. A tall negative bar means the reverse: they played worse at home or better on the road than expected.

Top Overachievers & Disappointments

Teams that most beat — or most fell short of — their simulated point projections. A positive vsSim means the team accumulated more points than the model expected on average; a negative one means fewer.

Biggest Overachievers

# Team Actual Sim vsSim
1 IBV Vestmannaeyjar 20 14.99 +5.01
2 Keflavik IF 20 15.38 +4.62
3 Valur Reykjavik 14 13.70 +0.30
4 IA Akranes 14 14.16 -0.16
5 Fram Reykjavik 15 15.44 -0.44

Biggest Disappointments

# Team Actual Sim vsSim
1 IBA Akureyri 9 13.69 -4.69
2 KR Reykjavik 10 13.05 -3.05
3 Breidablik 10 11.59 -1.59
4 Fram Reykjavik 15 15.44 -0.44
5 IA Akranes 14 14.16 -0.16

Top Streaks

Ranked by model unlikelihood — the product of pregame W/D/L probabilities over the games in each team's streak. A short streak by a poor team can outrank a longer one by a strong team since the poor team's per-game probabilities were lower going in. Unbeaten counts W or D consecutively; Winless counts L or D consecutively.

Most Unlikely Winning Streaks

# Team Games Dates Probability
1 IBV Vestmannaeyjar 5 Jul 3 – Aug 10 1 in 75
2 IA Akranes 3 Jul 24 – Aug 15 1 in 29
3 Fram Reykjavik 3 May 23 – Jun 21 1 in 15
4 Keflavik IF 3 Aug 15 – Aug 29 1 in 13
5 Valur Reykjavik 3 Jun 10 – Jun 28 1 in 12

Most Unlikely Losing Streaks

# Team Games Dates Probability
1 IBA Akureyri 3 Jul 18 – Aug 7 1 in 33
2 Breidablik 5 Jun 27 – Jul 26 1 in 32
3 KR Reykjavik 4 Jun 10 – Jul 5 1 in 20
4 Fram Reykjavik 2 Jun 21 – Jun 28 1 in 15
5 Valur Reykjavik 2 Aug 10 – Aug 15 1 in 9

Most Unlikely Unbeaten Streaks

# Team Games Dates Probability
1 IBV Vestmannaeyjar 7 Jun 21 – Aug 10 1 in 71
2 KR Reykjavik 5 Aug 7 – Sep 5 1 in 45
3 Breidablik 4 Aug 9 – Aug 29 1 in 27
4 Keflavik IF 7 Jun 12 – Jul 25 1 in 23
5 IA Akranes 5 Jul 24 – Aug 29 1 in 12

Most Unlikely Winless Streaks

# Team Games Dates Probability
1 IBA Akureyri 7 Jul 18 – Aug 28 1 in 65
2 KR Reykjavik 7 Jun 10 – Jul 24 1 in 29
3 Fram Reykjavik 5 Jul 25 – Aug 26 1 in 18
4 IA Akranes 3 Aug 21 – Sep 12 1 in 11
5 Breidablik 5 Jun 27 – Jul 26 1 in 7

Finish Position Heatmap

Each cell is the probability — across 100,000 simulations — that the team (row) finished at that position (column). Rows are sorted by actual finish (champion at top, bottom of the table at the bottom).

Team12345678
Keflavik IF23.61%18.54%15.09%12.58%10.25%8.32%6.65%4.96%
IBV Vestmannaeyjar20.95%16.74%14.72%13.27%11.98%9.51%7.72%5.11%
Fram Reykjavik20.73%18.25%16.13%13.20%11.20%9.29%6.86%4.34%
IA Akranes10.64%12.81%14.52%14.05%13.99%13.31%11.91%8.77%
Valur Reykjavik8.54%11.63%12.58%13.38%14.68%14.28%13.61%11.30%
KR Reykjavik5.36%8.10%9.75%12.44%13.71%16.30%18.12%16.22%
Breidablik2.48%3.86%5.68%7.58%10.32%13.62%20.17%36.29%
IBA Akureyri7.69%10.07%11.53%13.50%13.87%15.37%14.96%13.01%

Points Required Per Position

The empirical CDF of simulated point totals per finishing position. Each curve shows, for one position (1st, 2nd, ..., last), the spread of point totals teams accumulated across simulations. Reading the curve at the 50% mark gives the median points typically needed to finish at that position. Steep curves mean the position is tightly clustered around a particular point range; shallow curves mean the position came with a wide variety of point totals.

Points Totals in Context

How did each team's actual results compare to their simulated points, Elo rating, average opponent Elo, and percentile within simulated outcomes? Use the buttons to switch between views. In each chart, dashed crosshairs at the league means split the plot into four quadrants: pastel green (team did well, model agreed), pastel red (team did poorly, model agreed), and pastel yellow (model and reality disagreed).

Season Trends

How each metric evolved across the season - Elo rating, actual and projected points, title/promotion probability, and relegation probability - day by day.

Edges & Scoring

How these are measured

The navy dot is the actual value, the gold line and key are the model's reference where one applies, and the slate ticks are the cutoffs between read labels listed under each metric.

Home Edge
Share of matches won by the home team minus the share won by the away team.
No Edge: under 5% * Slight Edge: 5% to 15% * Clear Edge: 15% to 25% * Strong Edge: 25% and up.
Elo Value
Number of Elo rating points one goal is worth. A team this many Elo points better than another is expected to win by one goal on a neutral field.
Scoring Tilt
Average home goals minus average away goals per match. The gold line is the home goals edge implied by the scoring value of an Elo point and the home-field Elo bonus.
Road-Tilted: under -0.2 * Neutral: -0.2 to 0.5 * Home-Tilted: 0.5 to 1.2 * Strong Home: 1.2 and up.
Home Edge
HomeDrawAway
+19.64%
Clear Edge
51.79%16.07%32.14%
Elo Value
Home Edge
155 Elo
0.006 goals per Elo point
069.14400
Scoring Tilt
Expected
+0.41 goals
Neutral
-2+0.45+2

Title Race

How these are measured

The navy dot is the actual value, the gold line and key are the model's reference where one applies, and the slate ticks are the cutoffs between read labels listed under each metric.

Title-Race Openness
Effective number of teams with a live shot at finishing 1st, from the simulation. 1 means the favorite is a near-lock; larger means a wide-open race. Equal to 1 divided by the sum of squared title odds.
One-Team Race: under 2 * Top-Heavy: 2 to 4 * Open: 4 to 6 * Wide Open: 6 and up.
Champion Preseason Odds
Preseason probability that the eventual champion would finish 1st, from the simulation. The dot marks their rank across all teams, from longshot to favorite.
Preseason Favorite: 1st * Among the Favorites: 2nd * Middle of the Pack: 3rd to 4th * Longshot: 5th or lower.
Title Margin
Points-per-game gap between the champion and the runner-up. Shown per game so it reads the same across long and short seasons. The gold line is the winning margin the model expected, so a dot to the right means a more one-sided race than projected. A title won on goal difference shows 0.00.
Photo Finish: under 0.15 * Tight Race: 0.15 to 0.4 * Comfortable: 0.4 to 0.75 * Runaway: 0.75 and up.
Title-Race Openness
5.9
Open
12468
Champion Preseason Odds
24%
Keflavik IF, 1st of 8
LongshotFavorite
Title Margin
Expected
0.00/gm
Photo Finish
00.140.5/gm

Simulation-Based Surprises

How these are measured

The navy dot is the actual value, the gold line and key are the model's reference where one applies, and the slate ticks are the cutoffs between read labels listed under each metric.

Luck Spread
Standard deviation of the gap between each team's actual points and their simulated average points. The gold line is the spread the model expected from chance alone.
As Expected: under 2.56 * Some Luck: 2.56 to 3.84 * Lucky: 3.84 to 5.11 * Wild Swing: 5.11 and up.
Average Finish Error
Average gap between where each team was projected to finish and where they actually finished in the table.
Pinpoint: under 1.64 * Close: 1.64 to 2.46 * Off: 2.46 to 3.28 * Way Off: 3.28 and up.
Biggest Overachiever
The team that finished highest inside its own range of simulated outcomes. The gold line is where the top team in a league of 8 typically lands.
Biggest Underachiever
The team that finished lowest inside its own range of simulated outcomes. The gold line is where the bottom team in a league of 8 typically lands.
Season Outliers
Number of teams that finished above the 95th or below the 5th percentile of their own simulated range. Even a well-calibrated model expects about 10% of teams in the extremes.
Minimal Outliers: under 8 * As Expected: 8 to 12.8 * Several Outliers: 12.8 to 17.6 * Many Outliers: 17.6 and up.
Unexpected Relegations
Number of teams that were actually relegated but were not in the model's projected bottom field of the same size. The gold line is how many the model expected to miss on average.
As Expected: under 0.64 * A Surprise: 0.64 to 1.02 * Several Surprises: 1.02 to 1.4 * Many Surprises: 1.4 and up.
Luck Spread
Expected
3.17 points
Some Luck
03.208
Average Finish Error
Expected
1.00
Pinpoint
02.055
Biggest Overachiever
Expected 93.75%
95.88%
IBV Vestmannaeyjar
50100
Biggest Underachiever
Expected
9.30%
IBA Akureyri
06.25%50
Season Outliers
Expected
1 of 8
Minimal Outliers
00.88
Unexpected Relegations
Expected
1 of 1
A Surprise
00.61

Parity

How these are measured

The navy dot is the actual value, the gold line and key are the model's reference where one applies, and the slate ticks are the cutoffs between read labels listed under each metric.

Gini Index
How evenly points were spread across the league. Lower means a tight, balanced table; higher means a few teams ran off with most of the points.
Balanced: under 0.12 * Even: 0.12 to 0.18 * Top-Heavy: 0.18 to 0.26 * Lopsided: 0.26 and up.
Noll-Scully
How much more spread out the table was than a league where every match is a coin flip. The gold line at 1 is that coin-flip baseline. Above it, real talent gaps stretched the table; below it, the league was tighter than luck alone would produce.
Coin-Flip Parity: under 1 * Moderate Separation: 1 to 1.6 * Strong Separation: 1.6 to 2.2 * Wide Separation: 2.2 and up.
Interquartile Edge
Chance the team at the 75th percentile of Elo would beat the team at the 25th percentile on a neutral field. Higher means a bigger gap between the upper and lower half of the table.
Even: under 60% * Slight Edge: 60% to 70% * Clear Edge: 70% to 80% * Wide Edge: 80% and up.
Best vs. Worst
Chance the top-rated team would beat the bottom-rated team on a neutral field. The gold line is how large that gap tends to be in a league of this size; a dot to the right flags an unusually dominant or unusually weak team.
Even: under 70% * Clear Edge: 70% to 82% * Strong Edge: 82% to 92% * Dominant: 92% and up.
Close Games
Share of matches decided by 1 goal or fewer, draws included. The gold line is how many close games the matchups and the scoring value of an Elo point predict.
Few: under 30% * Some Drama: 30% to 40% * Frequent: 40% to 50% * Very Frequent: 50% and up.
Blowouts
Share of matches decided by 3 goals or more. The gold line is how many routs the matchups and the scoring model predict.
Rare: under 8% * Occasional: 8% to 14% * Frequent: 14% to 22% * Very Frequent: 22% and up.
Gini Index
0.16
Even
00.120.180.260.5
Noll-Scully
Coin-flip
1.15
Moderate Separation
01.003
Interquartile Edge
61%
Slight Edge
50%60%70%80%100%
Best vs. Worst
Baseline
74%
Clear Edge
50%75%100%
Close Games
Expected
54%
Very Frequent
0%51%100%
Blowouts
Expected
21%
Frequent
0%25%100%

Predictability

How these are measured

The navy dot is the actual value, the gold line and key are the model's reference where one applies, and the slate ticks are the cutoffs between read labels listed under each metric.

Brier Score
How close the pregame probabilities landed to the actual result, averaged over the season. Confident, correct calls are rewarded most; confident misses are punished most. Lower is better; since draws are possible, a score under 0.66 beats guessing the base rate.
Highly Predictable: under 0.56 * Predictable: 0.56 to 0.62 * Hard to Predict: 0.62 to 0.66 * Coin-Flip: 0.66 and up.
Matchup Imbalance
How lopsided the matchups were on paper, averaging the gap between the two win probabilities over their sum. 0 means every match was a toss-up; 1 means every match was a heavy favorite against a big underdog.
Very Even: under 0.1 * Slight Separation: 0.1 to 0.18 * Notable Separation: 0.18 to 0.28 * Lopsided: 0.28 and up.
Strangeness
How wild the final table was versus what the model expected. A value of 1 means teams landed about one standard deviation from their projections on average. Above 1 is a stranger season; below 1 hugged the projections.
Very Predictable: under 0.8 * As Expected: 0.8 to 1.1 * Wilder Than Modeled: 1.1 to 1.4 * Chaotic: 1.4 and up.
Repeatability
How closely the final table order matched the preseason Elo order, by Spearman rank correlation. Higher means last season's ratings strongly predicted this season's finish. Shows N/A for an inaugural season.
Weak Carryover: under 0.3 * Some Carryover: 0.3 to 0.6 * Strong Carryover: 0.6 to 0.85 * Near-Lock: 0.85 and up.
Upset Rate
Share of matches the underdog won. The gold line is how often the model expected underdogs to win; a dot to the right means upsets ran hotter than expected.
Chalky: under 25% * As Expected: 25% to 33% * Upset-Prone: 33% to 42% * Very Upset-Prone: 42% and up.
Clear Favorite Upset Rate
Share of matches the underdog won, counting only games with a clear favorite (at least 60% likely to win once a draw is set aside). The gold line is how often the model expected these favorites to slip.
Solid Favorites: under 15% * As Expected: 15% to 25% * Shaky Favorites: 25% to 35% * Very Shaky: 35% and up.
Brier Score
Expected
0.60
Predictable
00.572
Matchup Imbalance
0.36
Lopsided
00.10.180.280.5
Strangeness
Expected
0.97
As Expected
01.002
Repeatability
0.07
Weak Carryover
00.30.60.851
Upset Rate
Expected
30%
As Expected
0%27%50%
Clear Favorite Upset Rate
Expected
28%
Shaky Favorites
0%25%50%

Calibration

How these are measured

The navy dot is the actual value, the gold line and key are the model's reference where one applies, and the slate ticks are the cutoffs between read labels listed under each metric.

Probability calibration
An all-in-one chi-square test of the model's probabilities. Matches are grouped by how confident the model was, and within each group the predicted and actual counts of home wins, draws, and away wins are compared. The p-value is plotted; above 0.05 means well-calibrated.
Miscalibrated: under 0.05 * Borderline: 0.05 to 0.1 * Well Calibrated: 0.1 to 0.5 * Excellent: 0.5 and up.
Calibration slope
Checks whether the spread of the probabilities is right. Each probability is turned into log-odds and a line is fit predicting the actual results. A slope of 1.00 is perfect; below 1 is overconfidence (favorites lost more than their odds implied); above 1 is under-confidence.
Overconfident: under 0.85 * Calibrated: 0.85 to 1.15 * Underconfident: 1.15 to 1.3 * Very Underconfident: 1.3 and up.
Calibration error (ECE)
The average gap between the model's stated chances and how often the predicted result actually happened. Smaller is better. The gold line is the noise ceiling, the error luck alone can produce even with perfect probabilities; below it, the model's error is no larger than chance.
Well Within Noise: under 0.18 * Near Noise Ceiling: 0.18 to 0.26 * Above Noise: 0.26 to 0.35 * Well Above Noise: 0.35 and up.
Probability calibration
0.79
Excellent
0.010.050.10.51
Calibration slope
Ideal
1.02
Calibrated
0.51.001.5
Calibration error (ECE)
Noise ceiling
0.056
Well Within Noise
00.1750.4

Stochastic Promotion/Relegation Outcomes

Across 100,000 regular-season simulations from preseason Elo, the probability of each team's next-season outcome — promotion-positive outcomes on the left, relegation-positive on the right. The round buttons switch to heatmaps of how often each pair of teams met in that round of the playoff across the simulations, since every iteration produces a different field.

Team Same level Direct relegation
Fram Reykjavik 95.66% 4.34%
Keflavik IF 95.04% 4.96%
IBV Vestmannaeyjar 94.89% 5.11%
IA Akranes 91.23% 8.77%
Valur Reykjavik 88.70% 11.30%
IBA Akureyri 86.99% 13.01%
KR Reykjavik 83.78% 16.22%
Breidablik 63.71% 36.29%

Overall Game Log

Summary of every completed game this season. Sort any column by clicking its header.

Date Opponent Score Pre Elo Opp Elo Win % Tie % Loss % Elo Δ Points
1971-05-22 Valur Reykjavik D 1-1 978 983 56.3% 16.7% 27.1% -1.2 1
1971-05-22 @ IBV Vestmannaeyjar D 1-1 983 978 27.1% 16.7% 56.3% +1.2 1
1971-05-22 IBA Akureyri L 2-3 990 985 57.5% 16.7% 25.8% -9.2 0
1971-05-22 @ KR Reykjavik W 3-2 985 990 25.8% 16.7% 57.5% +9.2 2
1971-05-23 Breidablik W 2-0 999 972 59.9% 16.6% 23.5% +8.9 2
1971-05-23 @ Fram Reykjavik L 0-2 972 999 23.5% 16.6% 59.9% -8.9 0
1971-05-23 IA Akranes W 2-1 988 990 56.6% 16.7% 26.7% +5.0 2
1971-05-23 @ Keflavik IF L 1-2 990 988 26.7% 16.7% 56.6% -5.0 0
1971-06-05 IBA Akureyri W 1-0 985 994 55.8% 16.7% 27.5% +5.4 2
1971-06-05 @ IA Akranes L 0-1 994 985 27.5% 16.7% 55.8% -5.4 2
1971-06-05 IBV Vestmannaeyjar W 1-0 981 977 57.4% 16.7% 26.0% +5.1 2
1971-06-05 @ KR Reykjavik L 0-1 977 981 26.0% 16.7% 57.4% -5.1 1
1971-06-06 Valur Reykjavik W 2-0 963 984 54.4% 16.7% 28.9% +10.6 2
1971-06-06 @ Breidablik L 0-2 984 963 28.9% 16.7% 54.4% -10.6 1
1971-06-07 Keflavik IF W 2-1 1008 993 58.6% 16.6% 24.8% +4.6 4
1971-06-07 @ Fram Reykjavik L 1-2 993 1008 24.8% 16.6% 58.6% -4.6 2
1971-06-10 KR Reykjavik W 2-0 974 986 55.3% 16.7% 28.0% +10.3 3
1971-06-10 @ Valur Reykjavik L 0-2 986 974 28.0% 16.7% 55.3% -10.3 2
1971-06-12 IA Akranes W 5-3 972 990 54.6% 16.7% 28.7% +7.7 3
1971-06-12 @ IBV Vestmannaeyjar L 3-5 990 972 28.7% 16.7% 54.6% -7.7 2
1971-06-12 Breidablik W 4-1 988 974 58.4% 16.6% 24.9% +11.4 4
1971-06-12 @ Keflavik IF L 1-4 974 988 24.9% 16.6% 58.4% -11.4 2
1971-06-20 Valur Reykjavik L 1-3 983 984 56.7% 16.7% 26.6% -16.5 2
1971-06-20 @ IA Akranes W 3-1 984 983 26.6% 16.7% 56.7% +16.5 5
1971-06-20 IBA Akureyri W 4-0 999 988 58.1% 16.7% 25.2% +17.9 6
1971-06-20 @ Keflavik IF L 0-4 988 999 25.2% 16.7% 58.1% -17.9 2
1971-06-21 IBV Vestmannaeyjar W 3-1 1013 979 60.6% 16.6% 22.9% +7.5 6
1971-06-21 @ Fram Reykjavik L 1-3 979 1013 22.9% 16.6% 60.6% -7.5 3
1971-06-21 Fram Reykjavik W 4-1 972 1020 50.9% 16.7% 32.4% +14.4 5
1971-06-21 @ IBV Vestmannaeyjar L 1-4 1020 972 32.4% 16.7% 50.9% -14.4 6
1971-06-23 KR Reykjavik W 1-0 963 976 55.3% 16.7% 28.0% +5.5 4
1971-06-23 @ Breidablik L 0-1 976 963 28.0% 16.7% 55.3% -5.5 2
1971-06-26 Keflavik IF D 1-1 986 1017 53.1% 16.7% 30.2% -0.9 6
1971-06-26 @ IBV Vestmannaeyjar D 1-1 1017 986 30.2% 16.7% 53.1% +0.9 7
1971-06-27 Breidablik W 2-0 970 968 57.1% 16.7% 26.2% +9.8 4
1971-06-27 @ IBA Akureyri L 0-2 968 970 26.2% 16.7% 57.1% -9.8 4
1971-06-27 IA Akranes L 1-3 971 966 57.4% 16.7% 26.0% -16.7 2
1971-06-27 @ KR Reykjavik W 3-1 966 971 26.0% 16.7% 57.4% +16.7 4
1971-06-28 Fram Reykjavik W 5-3 1000 1006 56.2% 16.7% 27.1% +7.4 7
1971-06-28 @ Valur Reykjavik L 3-5 1006 1000 27.1% 16.7% 56.2% -7.4 6
1971-07-01 Valur Reykjavik D 2-2 1018 1008 58.1% 16.7% 25.3% -1.0 8
1971-07-01 @ Keflavik IF D 2-2 1008 1018 25.3% 16.7% 58.1% +1.0 8
1971-07-03 IBV Vestmannaeyjar L 1-4 980 985 56.3% 16.7% 27.1% -23.2 4
1971-07-03 @ IBA Akureyri W 4-1 985 980 27.1% 16.7% 56.3% +23.2 8
1971-07-04 IA Akranes L 0-5 958 983 53.9% 16.7% 29.4% -42.6 4
1971-07-04 @ Breidablik W 5-0 983 958 29.4% 16.7% 53.9% +42.6 6
1971-07-05 KR Reykjavik W 2-0 998 954 61.7% 16.6% 21.7% +8.2 8
1971-07-05 @ Fram Reykjavik L 0-2 954 998 21.7% 16.6% 61.7% -8.2 2
1971-07-07 Breidablik W 6-0 1008 916 66.3% 16.4% 17.3% +18.7 10
1971-07-07 @ IBV Vestmannaeyjar L 0-6 916 1008 17.3% 16.4% 66.3% -18.7 4
1971-07-10 Fram Reykjavik L 0-4 1025 1007 59.0% 16.6% 24.4% -37.6 6
1971-07-10 @ IA Akranes W 4-0 1007 1025 24.4% 16.6% 59.0% +37.6 10
1971-07-11 IBA Akureyri L 0-5 1009 957 62.5% 16.5% 21.0% -49.0 8
1971-07-11 @ Valur Reykjavik W 5-0 957 1009 21.0% 16.5% 62.5% +49.1 6
1971-07-12 Keflavik IF D 1-1 946 1017 47.8% 16.8% 35.5% -0.5 3
1971-07-12 @ KR Reykjavik D 1-1 1017 946 35.5% 16.8% 47.8% +0.5 9
1971-07-17 Keflavik IF L 0-3 897 1018 40.9% 16.7% 42.4% -20.7 4
1971-07-17 @ Breidablik W 3-0 1018 897 42.4% 16.7% 40.9% +20.7 11
1971-07-17 IBV Vestmannaeyjar L 1-3 988 1027 52.0% 16.7% 31.2% -15.3 6
1971-07-17 @ IA Akranes W 3-1 1027 988 31.2% 16.7% 52.0% +15.3 12
1971-07-18 IBA Akureyri W 5-2 1044 1006 61.1% 16.6% 22.4% +9.0 12
1971-07-18 @ Fram Reykjavik L 2-5 1006 1044 22.4% 16.6% 61.1% -9.0 6
1971-07-19 Valur Reykjavik L 1-2 945 960 55.1% 16.7% 28.2% -9.3 3
1971-07-19 @ KR Reykjavik W 2-1 960 945 28.2% 16.7% 55.1% +9.3 10
1971-07-24 KR Reykjavik W 2-1 1042 936 67.5% 16.3% 16.2% +3.2 14
1971-07-24 @ IBV Vestmannaeyjar L 1-2 936 1042 16.2% 16.3% 67.5% -3.1 3
1971-07-24 IA Akranes L 1-2 997 972 59.6% 16.6% 23.8% -10.0 6
1971-07-24 @ IBA Akureyri W 2-1 972 997 23.8% 16.6% 59.6% +10.0 8
1971-07-25 Fram Reykjavik W 3-0 1038 1053 55.1% 16.7% 28.2% +15.1 13
1971-07-25 @ Keflavik IF L 0-3 1053 1038 28.2% 16.7% 55.1% -15.1 12
1971-07-26 Breidablik W 4-2 969 876 66.3% 16.4% 17.3% +5.2 12
1971-07-26 @ Valur Reykjavik L 2-4 876 969 17.3% 16.4% 66.3% -5.2 4
1971-08-07 KR Reykjavik L 1-2 987 933 62.7% 16.5% 20.8% -10.5 6
1971-08-07 @ IBA Akureyri W 2-1 933 987 20.8% 16.5% 62.7% +10.5 5
1971-08-08 Keflavik IF W 3-1 982 1054 47.9% 16.8% 35.4% +11.0 10
1971-08-08 @ IA Akranes L 1-3 1054 982 35.4% 16.8% 47.9% -10.9 13
1971-08-09 Fram Reykjavik W 2-1 871 1038 34.5% 16.6% 48.8% +8.3 6
1971-08-09 @ Breidablik L 1-2 1038 871 48.8% 16.6% 34.5% -8.3 12
1971-08-10 IBV Vestmannaeyjar L 0-1 974 1045 47.8% 16.8% 35.4% -8.7 12
1971-08-10 @ Valur Reykjavik W 1-0 1045 974 35.4% 16.8% 47.8% +8.7 16
1971-08-14 Fram Reykjavik D 2-2 976 1030 50.2% 16.7% 33.0% -0.5 7
1971-08-14 @ IBA Akureyri D 2-2 1030 976 33.0% 16.7% 50.2% +0.5 13
1971-08-15 Keflavik IF L 2-3 976 1043 48.4% 16.8% 34.8% -7.8 7
1971-08-15 @ IBA Akureyri W 3-2 1043 976 34.8% 16.8% 48.4% +7.8 15
1971-08-15 IA Akranes L 2-3 966 993 53.5% 16.7% 29.8% -8.6 12
1971-08-15 @ Valur Reykjavik W 3-2 993 966 29.8% 16.7% 53.5% +8.6 12
1971-08-16 Breidablik D 0-0 943 879 63.6% 16.5% 19.9% -2.1 6
1971-08-16 @ KR Reykjavik D 0-0 879 943 19.9% 16.5% 63.6% +2.1 7
1971-08-21 KR Reykjavik D 1-1 1002 941 63.4% 16.5% 20.1% -1.9 13
1971-08-21 @ IA Akranes D 1-1 941 1002 20.1% 16.5% 63.4% +1.9 7
1971-08-21 IBV Vestmannaeyjar W 5-3 1050 1054 56.4% 16.7% 26.9% +7.3 17
1971-08-21 @ Keflavik IF L 3-5 1054 1050 26.9% 16.7% 56.4% -7.3 16
1971-08-22 IBA Akureyri W 1-0 882 968 45.7% 16.8% 37.5% +7.0 9
1971-08-22 @ Breidablik L 0-1 968 882 37.5% 16.8% 45.7% -7.0 7
1971-08-23 Valur Reykjavik L 1-2 1030 957 64.5% 16.5% 19.0% -10.8 13
1971-08-23 @ Fram Reykjavik W 2-1 957 1030 19.0% 16.5% 64.5% +10.8 14
1971-08-26 Fram Reykjavik W 3-2 943 1019 47.1% 16.8% 36.1% +6.1 9
1971-08-26 @ KR Reykjavik L 2-3 1019 943 36.1% 16.8% 47.1% -6.1 13
1971-08-28 IBA Akureyri W 5-1 1047 961 65.7% 16.4% 17.9% +11.0 18
1971-08-28 @ IBV Vestmannaeyjar L 1-5 961 1047 17.9% 16.4% 65.7% -11.0 7
1971-08-29 Breidablik D 3-3 1000 889 67.9% 16.3% 15.8% -1.4 14
1971-08-29 @ IA Akranes D 3-3 889 1000 15.8% 16.3% 67.9% +1.4 10
1971-08-29 Keflavik IF L 1-2 968 1058 45.3% 16.8% 38.0% -7.8 14
1971-08-29 @ Valur Reykjavik W 2-1 1058 968 38.0% 16.8% 45.3% +7.8 19
1971-09-04 IBV Vestmannaeyjar L 0-1 890 1058 34.4% 16.6% 48.9% -6.5 10
1971-09-04 @ Breidablik W 1-0 1058 890 48.9% 16.6% 34.4% +6.5 20
1971-09-05 Valur Reykjavik W 1-0 950 960 55.7% 16.7% 27.6% +5.4 9
1971-09-05 @ IBA Akureyri L 0-1 960 950 27.6% 16.7% 55.7% -5.4 14
1971-09-05 KR Reykjavik D 0-0 1066 949 68.3% 16.3% 15.4% -2.6 20
1971-09-05 @ Keflavik IF D 0-0 949 1066 15.4% 16.3% 68.3% +2.6 10
1971-09-12 IA Akranes W 1-0 1013 999 58.5% 16.6% 24.9% +4.9 15
1971-09-12 @ Fram Reykjavik L 0-1 999 1013 24.9% 16.6% 58.5% -4.9 14

Playoff Game Log

Every playoff game for the team selected at the top of the tab (empty if they didn't reach the postseason). Sort any column by clicking its header. @ before an opponent name indicates an away game; the record column shows the team's running playoff record.

Date Opponent Score Pre Elo Opp Elo Win % Tie % Loss % Elo Δ Record
1971-09-19 IBV Vestmannaeyjar W 4-0 1063 1064 41.4% 16.8% 41.8% +27.6 1-0
1971-09-19 @ Keflavik IF L 0-4 1064 1063 41.8% 16.8% 41.4% -27.6 0-1

Biggest Upsets

The 25 games where the underdog won despite the lowest pregame win probability. Underdog Win % is the winner's pregame chance of winning the game (lower = bigger upset). @ before a team name indicates the away side. An asterisk (*) after the date marks a playoff game.

# Date Underdog Win % Winning Team Losing Team
Team Elo Score Team Elo Score
1 1971-08-23 19.01% Valur Reykjavik 957 2 @ Fram Reykjavik 1030 1
2 1971-08-07 20.76% KR Reykjavik 933 2 @ IBA Akureyri 987 1
3 1971-07-11 21.01% IBA Akureyri 957 5 @ Valur Reykjavik 1009 0
4 1971-07-24 23.77% IA Akranes 972 2 @ IBA Akureyri 997 1
5 1971-07-10 24.39% Fram Reykjavik 1007 4 @ IA Akranes 1025 0
6 1971-05-22 25.81% IBA Akureyri 985 3 @ KR Reykjavik 990 2
7 1971-06-27 25.97% IA Akranes 966 3 @ KR Reykjavik 971 1
8 1971-06-20 26.62% Valur Reykjavik 984 3 @ IA Akranes 983 1
9 1971-07-03 27.06% IBV Vestmannaeyjar 985 4 @ IBA Akureyri 980 1
10 1971-07-19 28.18% Valur Reykjavik 960 2 @ KR Reykjavik 945 1
11 1971-07-04 29.37% IA Akranes 983 5 @ Breidablik 958 0
12 1971-08-15 29.80% IA Akranes 993 3 @ Valur Reykjavik 966 2
13 1971-07-17 31.22% IBV Vestmannaeyjar 1027 3 @ IA Akranes 988 1
14 1971-08-09 34.52% @ Breidablik 871 2 Fram Reykjavik 1038 1
15 1971-08-15 34.80% Keflavik IF 1043 3 @ IBA Akureyri 976 2
16 1971-08-10 35.42% IBV Vestmannaeyjar 1045 1 @ Valur Reykjavik 974 0
17 1971-08-29 38.00% Keflavik IF 1058 2 @ Valur Reykjavik 968 1
18 1971-09-19 * 41.43% @ Keflavik IF 1063 4 IBV Vestmannaeyjar 1064 0

Biggest Elo Changes

The 25 games that resulted in the largest shift in Elo rating.

# Date Elo Δ Winning Team Losing Team Tie %
Team Score Elo Win % Team Score Elo Win %
1 1971-07-11 49.06 IBA Akureyri 5 957 21.01% @ Valur Reykjavik 0 1009 62.45% 16.54%
2 1971-07-04 42.58 IA Akranes 5 983 29.37% @ Breidablik 0 958 53.92% 16.71%
3 1971-07-10 37.63 Fram Reykjavik 4 1007 24.39% @ IA Akranes 0 1025 58.98% 16.63%
4 1971-09-19 * 27.60 @ Keflavik IF 4 1063 41.43% IBV Vestmannaeyjar 0 1064 41.82% 16.75%
5 1971-07-03 23.21 IBV Vestmannaeyjar 4 985 27.06% @ IBA Akureyri 1 980 56.26% 16.68%
6 1971-07-17 20.74 Keflavik IF 3 1018 42.37% @ Breidablik 0 897 40.91% 16.72%
7 1971-07-07 18.66 @ IBV Vestmannaeyjar 6 1008 66.27% Breidablik 0 916 17.34% 16.38%
8 1971-06-20 17.89 @ Keflavik IF 4 999 58.13% IBA Akureyri 0 988 25.23% 16.65%
9 1971-06-27 16.72 IA Akranes 3 966 25.97% @ KR Reykjavik 1 971 57.37% 16.66%
10 1971-06-20 16.54 Valur Reykjavik 3 984 26.62% @ IA Akranes 1 983 56.71% 16.67%
11 1971-07-17 15.26 IBV Vestmannaeyjar 3 1027 31.22% @ IA Akranes 1 988 52.05% 16.73%
12 1971-07-25 15.10 @ Keflavik IF 3 1038 55.11% Fram Reykjavik 0 1053 28.19% 16.70%
13 1971-06-21 14.35 @ IBV Vestmannaeyjar 4 972 50.89% Fram Reykjavik 1 1020 32.37% 16.74%
14 1971-06-12 11.42 @ Keflavik IF 4 988 58.44% Breidablik 1 974 24.91% 16.64%
15 1971-08-08 10.95 @ IA Akranes 3 982 47.86% Keflavik IF 1 1054 35.40% 16.75%
16 1971-08-28 10.95 @ IBV Vestmannaeyjar 5 1047 65.67% IBA Akureyri 1 961 17.92% 16.41%
17 1971-08-23 10.84 Valur Reykjavik 2 957 19.01% @ Fram Reykjavik 1 1030 64.53% 16.46%
18 1971-06-06 10.63 @ Breidablik 2 963 54.37% Valur Reykjavik 0 984 28.92% 16.71%
19 1971-08-07 10.54 KR Reykjavik 2 933 20.76% @ IBA Akureyri 1 987 62.71% 16.53%
20 1971-06-10 10.33 @ Valur Reykjavik 2 974 55.33% KR Reykjavik 0 986 27.98% 16.70%
21 1971-07-24 10.02 IA Akranes 2 972 23.77% @ IBA Akureyri 1 997 59.61% 16.62%
22 1971-06-27 9.76 @ IBA Akureyri 2 970 57.12% Breidablik 0 968 26.22% 16.67%
23 1971-07-19 9.30 Valur Reykjavik 2 960 28.18% @ KR Reykjavik 1 945 55.12% 16.70%
24 1971-05-22 9.18 IBA Akureyri 3 985 25.81% @ KR Reykjavik 2 990 57.53% 16.66%
25 1971-07-18 8.98 @ Fram Reykjavik 5 1044 61.06% IBA Akureyri 2 1006 22.36% 16.58%