Liga MX · Sunday, 27 September 2026. Final score 2–3 (half-time 0–1). Before kick-off we rated it 56% over 2.5 goals — the match finished with 5, 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 | 56% | 44% | Over |
| Over 3.5 goals | 35% | 65% | no pick |
| Both teams to score | 58% | 42% | Yes |
The result model puts U.N.A.M. - Pumas at 44%, the draw at 25% and Atletico San Luis at 32%, from expected goals of 1.66 and 1.38.
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. U.N.A.M. - Pumas have 5 in 9 this season (2 of 4 at home), Atletico San Luis 6 in 9 (3 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 58%.
Last season still counts, briefly. With 9 and 9 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 52% 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 5 times in three years, producing over 2.5 goals in 60%. 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 55%.
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 58%, from expected goals of 1.66 for U.N.A.M. - Pumas and 1.38 for Atletico San Luis. Folding in 30% of that view gives 56%.
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 |
|---|---|---|---|---|
| U.N.A.M. - Pumas | 9 | 56% | 22% | 56% |
| Atletico San Luis | 9 | 67% | 44% | 56% |
More: U.N.A.M. - Pumas season stats · Atletico San Luis season stats · Liga MX table and form. Ratings are calibrated probabilities, not tips — a 60% call is expected to miss two times in five.