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Where was Vesta right, and where wrong?

Over 38 league matches of Pisa since 2017-18, each forecast by a model that had not seen that season, Vesta's likeliest result happened 55 times in 100; it said 51. Draws: said 27, happened 32 in 100.

Since its public record began on 30 Sep 2026: 51 league matches settled, the likeliest result happened 61 times in 100 (Vesta said 50). Every published forecast

League data to Fri 16 Oct · Vesta · out of sample, 2017-18 on

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When Vesta says N in 100, does it happen N times?Said v happened

every home win, draw and away win chance, grouped in bands of 10; on the line = exactly right

Chance band	Chances	Said	Happened	Gap
20–30 in 100	36	26.5	22.2	−4.3
30–40 in 100	31	33.1	32.3	−0.8

Which clubs beat Vesta's expectationsClubs v Vesta

points won against the points Vesta's forecasts gave (3 × win + draw), these matches

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Underrated: more points than expected

Club	Matches	Points	Expected	Gap
Lecce	2	6	2.4	+3.6
Parma	2	6	2.7	+3.3
Bologna	2	6	3.5	+2.5
Roma	2	6	3.8	+2.2
Juventus	2	6	4.1	+1.9
Como	2	6	4.2	+1.8
Napoli	2	6	4.3	+1.7
Udinese	2	4	2.6	+1.4
Inter	2	6	4.7	+1.3
Sassuolo	2	4	3.0	+1.0
Torino	2	4	3.0	+1.0
Genoa	2	4	3.2	+0.8

Overrated: fewer points than expected

Club	Matches	Points	Expected	Gap
Pisa	38	18	38.2	−20.2
Atalanta	2	2	4.6	−2.6
Cagliari	2	1	2.8	−1.8
Verona	2	2	2.7	−0.7
AC Milan	2	4	4.3	−0.3
Lazio	2	4	3.8	+0.2
Cremonese	2	3	2.6	+0.4
Fiorentina	2	4	3.3	+0.7
Genoa	2	4	3.2	+0.8
Torino	2	4	3.0	+1.0
Sassuolo	2	4	3.0	+1.0
Inter	2	6	4.7	+1.3

League by league, season by seasonLeague by league

Pisa's matches; the current season so far

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Season	League	Matches	Likeliest said	Happened	Draws said	Draws	Goals expected	Goals	RPS
2025-26	Serie A	38	51	55	27	32	2.56	2.55	0.165

Each season from 2017-18 was hidden from Vesta and forecast with a model fitted only on the seasons before it, the same model that publishes today's forecasts (checked Tue 13 Oct 2026). These are the forecasts of past seasons, not the published ones: the public record of forecasts made before kick-off starts on 30 Sep 2026 and lives in Vesta's track record.

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