Liga MX · Sunday, 20 September 2026. Final score 3–1 (half-time 1–1). Before kick-off we rated it 58% 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 | 58% | 42% | Over |
| Over 3.5 goals | 35% | 65% | no pick |
| Both teams to score | 60% | 40% | Yes |
The result model puts Atletico San Luis at 37%, the draw at 25% and Necaxa at 38%, from expected goals of 1.5 and 1.52.
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. Atletico San Luis have 5 in 8 this season (2 of 4 at home), Necaxa 5 in 8 (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 57% and 57%.
Last season still counts, briefly. With 8 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 57% and 56%.
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 56%.
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 57%.
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 1.5 for Atletico San Luis and 1.52 for Necaxa. Folding in 30% of that view gives 58%.
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 |
|---|---|---|---|---|
| Atletico San Luis | 8 | 63% | 38% | 50% |
| Necaxa | 8 | 63% | 25% | 88% |
More: Atletico San Luis season stats · Necaxa season stats · Liga MX table and form. Ratings are calibrated probabilities, not tips — a 60% call is expected to miss two times in five.