Başakşehir v Gençlerbirliği S.K. — prediction, stats and goal analysis

Süper Lig · Saturday, 19 September 2026. Final score 4–0 (half-time 2–0). 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.

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Our ratings for this match

MarketYesNoOur call
Over 2.5 goals55%45%Over
Over 3.5 goals26%74%no pick
Both teams to score52%48%Yes

The result model puts Başakşehir at 64%, the draw at 22% and Gençlerbirliği S.K. at 14%, from expected goals of 1.92 and 0.76.

How we got this number

The league sets the starting point. Süper Lig 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. Başakşehir have 3 in 5 this season (1 of 3 at home), Gençlerbirliği S.K. 3 in 5 (1 of 2 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 54% and 54%.

Last season still counts, briefly. With 5 and 5 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 53%.

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 55%.

Head to head. These sides have met 2 times in three years, producing over 2.5 goals in 100%. 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 50%, from expected goals of 1.92 for Başakşehir and 0.76 for Gençlerbirliği S.K.. 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
Başakşehir560%40%60%
Gençlerbirliği S.K.560%20%60%

Head to head

11 Apr 26Başakşehir 3–0 Gençlerbirliği S.K.O2.5
7 Nov 25Gençlerbirliği S.K. 2–1 BaşakşehirO2.5

More: Başakşehir season stats · Gençlerbirliği S.K. season stats · Süper Lig table and form. Ratings are calibrated probabilities, not tips — a 60% call is expected to miss two times in five.