Liga de Expansión · Sunday, 20 September 2026. Final score 2–0 (half-time 1–0). Before kick-off we rated it 57% over 2.5 goals — the match finished with 2, 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 | 55% | 45% | Over |
| Over 3.5 goals | 35% | 65% | no pick |
| Both teams to score | 58% | 42% | Yes |
The result model puts Monarcas at 51%, the draw at 23% and Leones Negros UDG at 27%, from expected goals of 1.97 and 1.38.
The league sets the starting point. Liga de Expansión has produced over 2.5 goals in 53% of its matches, and that is where a team with no record of its own would sit.
Each side's own record. Monarcas have 5 in 8 this season (4 of 4 at home), Leones Negros UDG 6 in 8 (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 56% and 59%.
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 52% and 51%.
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 52%.
Head to head. These sides have met 9 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 51%.
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 65%, from expected goals of 1.97 for Monarcas and 1.38 for Leones Negros UDG. Folding in 30% of that view gives 55%.
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 |
|---|---|---|---|---|
| Monarcas | 8 | 63% | 50% | 63% |
| Leones Negros UDG | 8 | 75% | 63% | 75% |
More: Monarcas season stats · Leones Negros UDG season stats · Liga de Expansión table and form. Ratings are calibrated probabilities, not tips — a 60% call is expected to miss two times in five.