Eliteserien · Sunday, 20 September 2026. Final score 3–2 (half-time 1–1). Before kick-off we rated it 57% over 2.5 goals — the match finished with 5, 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 | 57% | 43% | Over |
| Over 3.5 goals | 37% | 63% | no pick |
| Both teams to score | 52% | 48% | Yes |
The result model puts Tromso at 62%, the draw at 23% and Ham-Kam at 15%, from expected goals of 1.77 and 0.73.
The league sets the starting point. Eliteserien has produced over 2.5 goals in 62% of its matches, and that is where a team with no record of its own would sit.
Each side's own record. Tromso have 10 in 20 this season (4 of 10 at home), Ham-Kam 15 in 20 (8 of 10 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 56% and 68%.
Last season still counts, briefly. With 20 and 20 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 57% and 65%.
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 61%.
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 61%.
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 1.77 for Tromso and 0.73 for Ham-Kam. Folding in 30% of that view gives 57%.
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: Tromso season stats · Ham-Kam season stats · Eliteserien table and form. Ratings are calibrated probabilities, not tips — a 60% call is expected to miss two times in five.