Premijer Liga · Sunday, 20 September 2026. Final score 2–3 (half-time 0–1). Before kick-off we rated it 58% under 2.5 goals — the match finished with 5, so that call missed. 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 | 42% | 58% | Under |
| Over 3.5 goals | 21% | 79% | no pick |
| Both teams to score | 43% | 57% | No |
The result model puts Siroki Brijeg at 21%, the draw at 29% and Borac Banja Luka at 50%, from expected goals of 0.78 and 1.37.
The league sets the starting point. Premijer Liga has produced over 2.5 goals in 38% of its matches, and that is where a team with no record of its own would sit.
Each side's own record. Siroki Brijeg have 4 in 7 this season (2 of 4 at home), Borac Banja Luka 3 in 7 (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 43% and 39%.
Last season still counts, briefly. With 7 and 7 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 41% and 42%.
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 41%.
Head to head. These sides have met 10 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 42%.
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 36%, from expected goals of 0.78 for Siroki Brijeg and 1.37 for Borac Banja Luka. Folding in 30% of that view gives 40%.
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 42%.
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 |
|---|---|---|---|---|
| Siroki Brijeg | 7 | 57% | 0% | 86% |
| Borac Banja Luka | 7 | 43% | 29% | 43% |
More: Siroki Brijeg season stats · Borac Banja Luka season stats · Premijer Liga table and form. Ratings are calibrated probabilities, not tips — a 60% call is expected to miss two times in five.