Istanbul Basaksehir vs Gaziantep FK
Our model puts an Istanbul Basaksehir win at 75.3% in this Süper Lig fixture — the clearest call on this fixture. Expected goals run 2.52 to 0.73.
What this probability has been worth
A number is worth what it has been worth. Across 1,941 predictions published before kick-off and scored against the result afterwards, the calls we priced between 75% and 85% came in 81.4% of the time — 70 fixtures in that band. The model claimed 79.3%, so the two are within 2.2 points of each other. In this range the stated probability has meant roughly what it says.
Where we disagree with the market
Bookmakers price Istanbul Basaksehir at 1.67, which implies about 59.9%. Our model has it at 75.3% — 15.4 points higher. That is a wide gap, and it is worth being plain about what it means: it is not a claim that the price is wrong and we are right. It means two methods that usually agree have landed far apart on this one, and only the result will say which of them read it better.
The ratings gap
Istanbul Basaksehir carry a rating of 1614 against 1494 for Gaziantep FK, a gap of 120 points. On our scale that is the difference between a side that controls most of its fixtures and one that has to earn each of them. It is also the single largest input into the probabilities above.
Attack against defence
The single rating hides where the mismatch actually sits. Splitting it, Istanbul Basaksehir's attack should find room against Gaziantep FK's defence, by 169 points. That is the mechanism behind the expected-goals line rather than a separate opinion about it.
A high-scoring home side
One model here does nothing but estimate how likely the home side is to score four goals or more, and on this fixture it reads 71.6%. Across our settled fixtures that happens about 8% of the time, so this is well above ordinary. It says nothing about who wins — a side can score four and still be caught — but a match where one team is expected to run up a total is one where the scoreline is much harder to call than the result.