Brest vs Paris Saint-Germain
Our model puts a Paris Saint-Germain win at 68.5% in this Ligue 1 fixture — the clearest call on this fixture. Expected goals run 1.04 to 2.54.
Where we disagree with the market
Bookmakers price Paris Saint-Germain at 1.29, which implies about 77.5%. Our model has it at 68.5% — 9 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.
The ratings gap
Paris Saint Germain carry a rating of 1938 against 1641 for Brest, a gap of 296 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, Paris Saint-Germain's attack should find room against Brest's defence, by 326 points. That is the mechanism behind the expected-goals line rather than a separate opinion about it.