Primera A · Saturday, 31 October 2026 · 01:05. Our rating makes this 46% to go over 2.5 goals, so our lean is under. The Primera A average is 45%.
| Market | Yes | No | Our call |
|---|---|---|---|
| Over 2.5 goals | 46% | 54% | Under |
| Over 3.5 goals | 22% | 78% | no pick |
| Both teams to score | 49% | 51% | No |
The result model puts Bucaramanga at 54%, the draw at 27% and Deportivo Pasto at 19%, from expected goals of 1.5 and 0.79.
The league sets the starting point. Primera A has produced over 2.5 goals in 45% of its matches, and that is where a team with no record of its own would sit.
Each side's own record. Bucaramanga have 15 in 32 this season (8 of 16 at home), Deportivo Pasto 17 in 35 (11 of 17 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 46% and 47%.
Last season still counts, briefly. With 32 and 35 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 46% and 47%.
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 46%.
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 47%.
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 40%, from expected goals of 1.5 for Bucaramanga and 0.79 for Deportivo Pasto. Folding in 30% of that view gives 45%.
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 46%.
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 |
|---|---|---|---|---|
| Bucaramanga | 32 | 47% | 28% | 59% |
| Deportivo Pasto | 35 | 49% | 20% | 46% |
Our numbers give this match a 68% chance of at least one goal before half-time and 33% of two or more. The Primera A rates are 67% and 32%. After the break: 71% for a goal and 34% for two or more (league 73% and 38%). Bucaramanga's last 50 games had a first-half goal 64% of the time and a second-half goal 64%; Deportivo Pasto's last 50, 76% and 70%. Team form says less about a single half than about a full match, so these numbers stay close to the league's.
Every match ranked the same way: first half goals today · second half goals today · tomorrow.
More: Bucaramanga season stats · Deportivo Pasto season stats · Primera A table and form. Ratings are calibrated probabilities, not tips — a 60% call is expected to miss two times in five.