Serie A · Saturday, 24 October 2026 · 17:00. Our rating makes this 46% to go over 2.5 goals, so our lean is under. The Serie A average is 48%.
Open this match in the app →| Market | Yes | No | Our call |
|---|---|---|---|
| Over 2.5 goals | 46% | 54% | Under |
| Over 3.5 goals | 24% | 76% | no pick |
| Both teams to score | 48% | 52% | No |
The result model puts Napoli at 36%, the draw at 29% and AS Roma at 35%, from expected goals of 1.18 and 1.17.
The league sets the starting point. Serie A has produced over 2.5 goals in 48% of its matches, and that is where a team with no record of its own would sit.
Each side's own record. Napoli have 3 in 7 this season (2 of 3 at home), AS Roma 4 in 7 (1 of 3 away). Those records are pulled toward the league rate with the weight of about 24 matches — enough that two or three unusual games cannot swing a rating — giving 47% and 50%.
Last season still counts, briefly. With 7 and 7 games played this season, last season's rates are still blended in and fade out entirely by game 40 — the point at which our testing showed they stop adding accuracy. A single season is part luck, so each club's record is first pulled toward the league average by 34 games' weight. That moves the two figures to 50% and 43%.
The mix. Weighted 40% home side, 40% away side and 20% league — the split that beat every alternative across 30,582 matches of testing — that gives 47%.
Head to head. These sides have met 6 times in three years, producing over 2.5 goals in 33%. That nudges the number 5% of the way toward the head-to-head pattern — deliberately small, because fixtures change more than reputations do — landing on 46%.
Goal expectation. Separately a Poisson model built from attack and defence strength — using real expected-goals data where the league has it — puts this match at 42%, from expected goals of 1.18 for Napoli and 1.17 for AS Roma. Folding in 30% of that view gives 45%.
Calibration. Tested against 97,729 past matches, our ratings below 55% have run consistently too pessimistic — a figure in the high 30s, for instance, has come in about four points higher. So ratings in that range are lifted part-way back, giving 46%.
This breakdown is generated from the same inputs the rating uses, so it cannot describe a calculation we did not perform. The full model is set out in the methodology.
More: Napoli season stats · AS Roma season stats · Serie A table and form. Ratings are calibrated probabilities, not tips — a 60% call is expected to miss two times in five.