Arminia Bielefeld vs 1. FC Heidenheim 1846
Our model puts a 1. FC Heidenheim 1846 win at 37.3% in this 2. Bundesliga fixture — close to a three-way split. Expected goals run 1.35 to 1.36.
What this probability has been worth
A number is worth what it has been worth. Across 1,354 predictions published before kick-off and scored against the result afterwards, the calls we priced between 35% and 45% came in 39.6% of the time — 520 fixtures in that band. The model claimed 40.5%, so the two are within 0.9 points of each other. In this range the stated probability has meant roughly what it says.
Where we disagree with the market
Bookmakers price Arminia Bielefeld at 2.05, which implies about 48.8%. Our model has it at 36.8% — 12 points lower. 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.
Attack against defence
The single rating hides where the mismatch actually sits. Splitting it, 1. FC Heidenheim 1846's attack should find room against Arminia Bielefeld's defence, by 130 points. That is the mechanism behind the expected-goals line rather than a separate opinion about it.
1. FC Heidenheim 1846 are on a run
1. FC Heidenheim 1846 arrive on 3 straight wins, part of 3 matches unbeaten. Form of that length moves our rating on its own, so it is already reflected in the numbers above rather than being an argument on top of them.