Liga MX · Sunday, 20 September 2026. Final score 2–2 (half-time 0–2). Before kick-off we rated it 53% under 2.5 goals — the match finished with 4, so that call missed. 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 | 51% | 49% | Over |
| Over 3.5 goals | 29% | 71% | no pick |
| Both teams to score | 53% | 47% | Yes |
The result model puts Club America at 46%, the draw at 27% and Guadalajara Chivas at 26%, from expected goals of 1.43 and 1.
The league sets the starting point. Liga MX has produced over 2.5 goals in 55% of its matches, and that is where a team with no record of its own would sit.
Each side's own record. Club America have 4 in 7 this season (2 of 3 at home), Guadalajara Chivas 3 in 8 (1 of 4 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 55% and 50%.
Last season still counts, briefly. With 7 and 8 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 53% and 57%.
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 55%.
Head to head. These sides have met 7 times in three years, producing over 2.5 goals in 14%. 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 53%.
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 1.43 for Club America and 1 for Guadalajara Chivas. Folding in 30% of that view gives 50%.
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 51%.
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 |
|---|---|---|---|---|
| Club America | 7 | 57% | 14% | 43% |
| Guadalajara Chivas | 8 | 38% | 13% | 38% |
More: Club America season stats · Guadalajara Chivas season stats · Liga MX table and form. Ratings are calibrated probabilities, not tips — a 60% call is expected to miss two times in five.