Primera · Saturday, 15 August 2026 · 00:00. Final score 0–2 (half-time 0–1). Before kick-off we rated it 50% under 2.5 goals — the match finished with 2, 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 | 50% | 50% | Under |
| Over 3.5 goals | 28% | 72% | no pick |
| Both teams to score | 52% | 48% | Yes |
The result model puts Universidad de Concepcion at 44%, the draw at 26% and D. La Serena at 29%, from expected goals of 1.42 and 1.1.
| Market | Price | Implied | Our rating | Edge |
|---|---|---|---|---|
| Over 2.5 goals | 1.95 | 49% | 50% | +1% |
| Under 2.5 goals | 1.85 | 51% | 50% | -1% |
| Both teams to score | 1.73 | 54% | 52% | -2% |
Implied percentages have the bookmaker's margin removed, so they add to 100 and can be compared with our rating directly. Edge is simply the gap between the two. A positive edge means our model thinks the outcome is likelier than the price suggests — it is not a tip, and a high probability with a negative edge is a poor bet however safe it looks. Prices are a pre-match snapshot from a single bookmaker and move constantly.
Match odds: Universidad de Concepcion 2.25, draw 3.40, D. La Serena 2.90.
The league sets the starting point. Primera has produced over 2.5 goals in 52% of its matches, and that is where a team with no record of its own would sit.
Each side's own record. Universidad de Concepcion have 8 in 17 this season (3 of 8 at home), D. La Serena 10 in 18 (5 of 9 away). Those records are pulled toward the league rate with the weight of about 32 matches — enough that two or three unusual games cannot swing a rating — giving 48% and 54%.
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 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 46%, from expected goals of 1.42 for Universidad de Concepcion and 1.1 for D. La Serena. Folding in 30% of that view gives 50%.
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 |
|---|---|---|---|---|
| Universidad de Concepcion | 17 | 47% | 18% | 41% |
| D. La Serena | 18 | 56% | 44% | 61% |
More: Universidad de Concepcion season stats · D. La Serena season stats · Primera table and form. Ratings are calibrated probabilities, not tips — a 60% call is expected to miss two times in five.