Bandırmaspor v İstanbulspor — prediction, stats and goal analysis

1. Lig · Saturday, 8 August 2026. Final score 3–0 (half-time 2–0). Rebuilt from the season as it stood that morning, our rating would have been 45% 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 goals45%55%Under
Over 3.5 goals26%74%no pick
Both teams to score47%53%No

The result model puts Bandırmaspor at 48%, the draw at 28% and İstanbulspor at 24%, from expected goals of 1.37 and 0.89.

How we got this number

The league sets the starting point. 1. Lig has produced over 2.5 goals in 54% of its matches, and that is where a team with no record of its own would sit.

Each side's own record. Bandırmaspor have 0 in 0 this season, İstanbulspor 0 in 0. 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 0 and 0 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 43% and 56%.

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 50%.

Head to head. These sides have met 4 times in three years, producing over 2.5 goals in 0%. 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 48%.

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 39%, from expected goals of 1.37 for Bandırmaspor and 0.89 for İstanbulspor. Folding in 30% of that view gives 45%.

Season opener. One of these sides has not played a league game yet. Openers run about 2.5 points under their league's norm, measured across 2,727 of them, so the rating is docked to 43%.

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 45%.

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
Bandırmaspor0———
İstanbulspor0———

Head to head

7 Mar 26Bandırmaspor 1–0 İstanbulsporU2.5
20 Oct 25İstanbulspor 1–1 BandırmasporU2.5
17 Feb 25Bandırmaspor 1–0 İstanbulsporU2.5
22 Sept 24İstanbulspor 0–0 BandırmasporU2.5
2 Jun 22Bandırmaspor 1–2 İstanbulsporO2.5
20 May 22İstanbulspor 0–0 BandırmasporU2.5

Things worth knowing

More: Bandırmaspor season stats · İstanbulspor season stats · 1. Lig table and form. Ratings are calibrated probabilities, not tips — a 60% call is expected to miss two times in five.