Serie A (W) · Saturday, 26 September 2026. Final score 3–1 (half-time 1–1). Before kick-off we rated it 53% over 2.5 goals — the match finished with 4, so that call landed. That rating was frozen into a version-controlled ledger before the game and has not been touched since.
Open this match in the app →| Market | Yes | No | Our call |
|---|---|---|---|
| Over 2.5 goals | 27% | 73% | Under |
| Over 3.5 goals | 13% | 87% | no pick |
| Both teams to score | 25% | 75% | No |
The result model puts Juventus W at 43%, the draw at 28% and Napoli W at 30%, from expected goals of 1.35 and 1.08.
The league sets the starting point. Serie A (W) has produced over 2.5 goals in 0% of its matches, and that is where a team with no record of its own would sit.
Each side's own record. Juventus W have 0 in 0 this season, Napoli W 0 in 0. 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 0% and 0%.
Last season still counts, briefly. With 0 and 0 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 20% and 18%.
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 15%.
Head to head. These sides have met 6 times in three years, producing over 2.5 goals in 83%. 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 18%.
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 44%, from expected goals of 1.35 for Juventus W and 1.08 for Napoli W. Folding in 30% of that view gives 26%.
Season opener. One of these sides has not played a league game yet. Openers run about 2.5 points under their league's norm, measured across 2,727 of them, so the rating is docked to 24%.
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 27%.
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.
| Team | Games | O2.5 | O3.5 | BTTS |
|---|---|---|---|---|
| Juventus W | 0 | — | — | — |
| Napoli W | 0 | — | — | — |
More: Juventus W season stats · Napoli W season stats · Serie A (W) table and form. Ratings are calibrated probabilities, not tips — a 60% call is expected to miss two times in five.