Primera A · Wednesday, 13 May 2026. Final score 7–1 (half-time 2–1). Rebuilt from the season as it stood that morning, our rating would have been 53% for over 2.5 goals. This match is older than our frozen ratings ledger, which keeps 30 days, so that figure is a reconstruction from pre-match data rather than a number we published at the time — a distinction worth making, because only the frozen ones prove what we actually said beforehand.
Open this match in the app →| Market | Yes | No | Our call |
|---|---|---|---|
| Over 2.5 goals | 53% | 47% | Over |
| Over 3.5 goals | 27% | 73% | no pick |
| Both teams to score | 48% | 52% | No |
The result model puts Atletico Nacional at 78%, the draw at 15% and Internacional de Bogota at 7%, from expected goals of 2.44 and 0.59.
The league sets the starting point. Primera A has produced over 2.5 goals in 44% of its matches, and that is where a team with no record of its own would sit.
Each side's own record. Atletico Nacional have 13 in 20 this season (6 of 9 at home), Internacional de Bogota 13 in 20 (6 of 10 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 54% and 54%.
Last season still counts, briefly. With 20 and 20 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 49%.
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 50%.
Head to head. These sides have met 7 times in three years, producing over 2.5 goals in 57%. 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 50%.
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 2.44 for Atletico Nacional and 0.59 for Internacional de Bogota. Folding in 30% of that view gives 53%.
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 Nacional | 20 | 65% | 20% | 40% |
| Internacional de Bogota | 20 | 65% | 30% | 65% |
More: Atletico Nacional season stats · Internacional de Bogota season stats · Primera A table and form. Ratings are calibrated probabilities, not tips — a 60% call is expected to miss two times in five.