Osters IF v GIF Sundsvall — prediction, stats and goal analysis

Superettan · Tuesday, 25 August 2026. Final score 1–0 (half-time 0–0). Rebuilt from the season as it stood that morning, our rating would have been 55% 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 →

Our ratings for this match

MarketYesNoOur call
Over 2.5 goals55%45%Over
Over 3.5 goals34%66%no pick
Both teams to score51%49%Yes

The result model puts Osters IF at 60%, the draw at 23% and GIF Sundsvall at 16%, from expected goals of 1.81 and 0.82.

How we got this number

The league sets the starting point. Superettan has produced over 2.5 goals in 56% of its matches, and that is where a team with no record of its own would sit.

Each side's own record. Osters IF have 13 in 19 this season (6 of 10 at home), GIF Sundsvall 12 in 19 (4 of 9 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 61% and 59%.

Last season still counts, briefly. With 19 and 19 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 61% and 55%.

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 58%.

Head to head. These sides have met 4 times in three years, producing over 2.5 goals in 50%. 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 57%.

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 49%, from expected goals of 1.81 for Osters IF and 0.82 for GIF Sundsvall. Folding in 30% of that view gives 55%.

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.

Season form

TeamGamesO2.5O3.5BTTS
Osters IF1968%42%53%
GIF Sundsvall1963%37%47%

Head to head

15 Jun 26GIF Sundsvall 0–4 Osters IFO2.5
23 Sept 24GIF Sundsvall 0–2 Osters IFU2.5
20 Jul 24Osters IF 2–0 GIF SundsvallU2.5
11 Nov 23Osters IF 4–0 GIF SundsvallO2.5
24 Apr 23GIF Sundsvall 2–3 Osters IFO2.5

More: Osters IF season stats · GIF Sundsvall season stats · Superettan table and form. Ratings are calibrated probabilities, not tips — a 60% call is expected to miss two times in five.