Primeira Liga · Sunday, 16 August 2026 · 15:30. Final score 2–0 (half-time 0–0). 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 | 32% | 68% | no pick |
| Both teams to score | 50% | 50% | No |
The result model puts Nacional at 43%, the draw at 26% and Estoril at 32%, from expected goals of 1.46 and 1.22.
| 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 | 1.70 | 55% | 50% | -5% |
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: Nacional 3.00, draw 3.30, Estoril 2.38.
The league sets the starting point. Primeira Liga 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. Nacional have 1 in 1 this season, Estoril 0 in 1. 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 55% and 52%.
Last season still counts, briefly. With 1 and 1 games played this season, last season's rates are still blended in and fade out entirely by game 14 — the point at which our testing showed they stop adding accuracy. That moves the two figures to 42% and 61%.
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 4 times in three years, producing over 2.5 goals in 25%. That nudges the number 10% of the way toward the head-to-head pattern — deliberately small, because fixtures change more than reputations do — landing on 49%.
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 50%, from expected goals of 1.46 for Nacional and 1.22 for Estoril. 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.
More: Nacional season stats · Estoril season stats · Primeira Liga table and form. Ratings are calibrated probabilities, not tips — a 60% call is expected to miss two times in five.