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Fischietto finale

LaLiga · matchday 11

Real dataStatistics onlyUpdated 26/10 08:40

Every prediction is saved before the match and compared with the result.

In short

Over 25 matches the model got the outcome (1, X or 2) right 56% of the time. Always picking a home win would be right about 44% of the time. Its percentages are 9% less wrong than those taken from league averages alone.

With fewer than 30 matches this is only a first look: the numbers can change a lot.

How the last round went

23 October – 25 October · outcome right 5 out of 9 (56%) · exact score right 1 time

The surprises

Barça – Real Madrid · 0-0outcome given 19%
Alavés – Málaga · 1-1outcome given 23%
Rayo Vallecano – Elche · 0-3outcome given 26%

The best predictions

Atleti – Deportivo · 1-01 at 62% ✓
Real Sociedad – Levante · 2-11 at 57% ✓
Athletic – Getafe · 4-01 at 44% ✓
Model performance
56% 1X2 right
Sample still growing

14 correct predictions out of 25. Last 12: 6 correct. More matches are needed before judging form.

56%
✕✓✕✓✓✓✓✕✕✓✕✓
1X2 outcome right
14 of 25
56%
Average stated probability
50%
if they match, the model is calibrated
Model reliability
Sample still growing

Real results are needed to calculate a reliable score. No correction is applied.

Lab · look back

25 predictions

Comparison on predictions actually saved before the result. No prediction is rebuilt after the fact.

60%Last 10 · 10 matches
Brier 0.63
56%Last 25 · 25 matches
Brier 0.60
56%Last 50 · 25 matches · incomplete sample
Brier 0.60
MarketHitActualGap
110/2540%gap -8%
25/2520%gap -8%
X10/2540%gap +15%
1X20/2580%gap +8%
X215/2560%gap +8%
Over 1.518/2572%gap -7%
Over 2.514/2556%gap +0%
Under 2.511/2544%gap 0%
Under 3.516/2564%gap -2%
Both score15/2560%gap +3%

Model quality

Model error
0.60
the lower, the better
Simple method
0.66
league averages only
Over/Under 2.5
15 of 25
60%
Both teams score
14 of 25
56%

The model is 9% less wrong than the simple method. With 25 matches the figure is still shaky: it needs at least fifty matches, ideally a hundred.

When I say 60%, does it happen?

40%60%80%100%0%50%100%Stated probabilityActual hitsunder 45%: stated 41%, actual 60% over 10 matches1045-55%: stated 49%, actual 50% over 8 matches855-65%: stated 61%, actual 40% over 5 matches565% or more: stated 68%, actual 100% over 2 matches2

Each point is a band of predictions (the number next to it says how many matches). The closer the points are to the dashed line, the more reliable the percentages.

ProbabilityHitsStatedActual
under 45%41%60%
45-55%49%50%
55-65%61%40%
65% or more68%100%

If "Stated" and "Actual" are close, the percentages are reliable.

Does the news help?

Over 14 matches: with the news the error is 0.39, with statistics alone 0.39. Too early to say. Outcome right: 7 of 14 with the news, 7 of 14 with statistics alone.

New model or old?

Over 25 matches, statistics only: error 0.39 for the current model, 0.41 for the first version. Too early to say.

Reliability by market

A 0–100 indicator built from calibration and Brier score. It is descriptive, not a guarantee of results. The model's picks use the history only when there are at least 10 observations per category.

1X2—
60 of 125 selections · 25 matchespred. 45%actual 48%
Both score—
25 of 50 selections · 25 matchespred. 50%actual 50%
Over/Under—
59 of 100 selections · 25 matchespred. 61%actual 59%
Combination—
81 of 200 selections · 25 matchespred. 41%actual 41%
Exact score—
2 of 25 selections · 25 matchespred. 12%actual 8%

Sample still too small: the system keeps collecting data without changing the model's probabilities.

Latest predictions

newest → oldest
Barça – Real Madrid1 given 62% · final score 0-0✕
Real Sociedad – Levante1 given 57% · final score 2-1✓
Celta – Real Betis1 given 43% · final score 0-0✕
Athletic – Getafe1 given 44% · final score 4-0✓
Atleti – Deportivo1 given 62% · final score 1-0✓
Valencia – Villarreal2 given 40% · final score 1-2✓
Santander – Espanyol1 given 40% · final score 2-1✓
Rayo Vallecano – Elche1 given 49% · final score 0-3✕
Alavés – Málaga1 given 62% · final score 1-1✕
Levante – Athletic1 given 44% · final score 3-1✓
Getafe – Rayo Vallecano1 given 37% · final score 1-1✕
Real Madrid – Sevilla FC1 given 68% · final score 4-1✓
Málaga – Real Sociedad2 given 40% · final score 2-5✓
Celta – Alavés1 given 47% · final score 2-1✓
Osasuna – Santander1 given 50% · final score 2-0✓
Valencia – Athletic1 given 40% · final score 0-0✕
Real Betis – Barça2 given 51% · final score 2-5✓
Villarreal – Elche1 given 62% · final score 0-0✕
Espanyol – Atleti2 given 43% · final score 0-1✓
Deportivo – Levante1 given 53% · final score 1-1✕
Levante – Sevilla FC1 given 45% · final score 3-3✕
Santander – Valencia1 given 45% · final score 2-2✕
Real Betis – Osasuna1 given 68% · final score 5-2✓
Real Sociedad – Deportivo1 given 49% · final score 3-2✓
Elche – Celta1 given 38% · final score 0-0✕