Eredivisie · Friday, 18 September 2026. Final score 3–0 (half-time 2–0). Rebuilt from the season as it stood that morning, our rating would have been 64% 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 | 64% | 36% | Over |
| Over 3.5 goals | 42% | 58% | no pick |
| Both teams to score | 65% | 35% | Yes |
The result model puts Groningen at 56%, the draw at 20% and PEC Zwolle at 24%, from expected goals of 2.28 and 1.44.
The league sets the starting point. Eredivisie has produced over 2.5 goals in 64% of its matches, and that is where a team with no record of its own would sit.
Each side's own record. Groningen have 5 in 6 this season (3 of 3 at home), PEC Zwolle 4 in 6 (2 of 3 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 68% and 64%.
Last season still counts, briefly. With 6 and 6 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 60% and 63%.
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 62%.
Head to head. These sides have met 4 times in three years, producing over 2.5 goals in 25%. 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 60%.
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 72%, from expected goals of 2.28 for Groningen and 1.44 for PEC Zwolle. Folding in 30% of that view gives 64%.
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 |
|---|---|---|---|---|
| Groningen | 6 | 83% | 67% | 100% |
| PEC Zwolle | 6 | 67% | 67% | 50% |
More: Groningen season stats · PEC Zwolle season stats · Eredivisie table and form. Ratings are calibrated probabilities, not tips — a 60% call is expected to miss two times in five.