Matches
52
Points
101
Expected
102.8
31 W · 8 D · 13 L
73 ptsdeviation −1.8133 pts
Updated on
26 seasons, 9,880 matches and 80 referees, compared with what the bookmakers' odds predicted. Every figure can be checked: sources cited, method published, tables downloadable.
Matches
52
Points
101
Expected
102.8
31 W · 8 D · 13 L
73 ptsdeviation −1.8133 pts
Examples chosen by number of matches, not by deviation.
Undiano Mallenco × Real Madrid CF
Four results, each with its details and method.
Referee × club deviations after correction
Verdict / q-value With hundreds of comparisons, some look extreme by chance. The Benjamini-Hochberg correction accounts for this: a deviation is only called notable if q < 0.05. Otherwise: inconclusive. Inconclusive does not mean "no effect": with 11 matches, only a deviation of about ±1.57 points per match could have been detected.0notable out of 1,325 pairs
Before correction, 255 tests out of 6,535 fall below p < 0.05: the order of magnitude expected from chance alone.
Summary of verdicts →The odds, a reliable benchmark
Calibration Across the whole Liga, actual points and points expected from the odds differ by only a few % per season: the odds are a reliable benchmark.−1.3% to +1.8%
Deviation between actual points and points expected from the odds, whole Liga, in each of the 26 seasons.
Calibration by season →Effect of VAR (2018-19)
Effect of VAR Whole-Liga average, four seasons before against four seasons after the arrival of VAR. VAR arrives the same season the payments end.+26%
Penalties awarded per match, whole Liga: 0.290 → 0.364 (p = 0.001). VAR coincides with the end of the payments.
The VAR study →Negreira study: before / during / after
Difference-in-differences We measure the club's change between two periods, then subtract the change of a comparison group over the same periods. What remains is the change specific to the club.−0.111pt/match
Difference-in-differences of points − expected, Barça vs control group, 2001-18 → 2018-26: q = 0.27, inconclusive.
Read the study →Every club, referee and season has its own page.
The 20 clubs of the latest season; 52 clubs in all since 2000-01.
Ranked by number of matches refereed only.
Champion, standings, referees, averages.
Underlined marker: arrival of VAR (2018-19). Archives 1990-2000
Three steps, all documented.
Scores, odds, referees, cards and penalties from 9,880 matches, gathered from public sources, normalised and cross-checked.
Before each match, the market gives the chances of a win, draw and defeat. Points obtained are compared with these expected points.
Every deviation is tested, then corrected for multiple comparisons: a deviation is only called notable if it survives the correction.