Sparta Prague vs Lillestrom
Our model puts a Sparta Prague win at 82.7% in this UEFA Europa League fixture — the clearest call on this fixture. Expected goals run 2.95 to 0.62.
What this probability has been worth
A number is worth what it has been worth. Across 1,836 predictions published before kick-off and scored against the result afterwards, the calls we priced between 75% and 85% came in 80.6% of the time — 62 fixtures in that band. The model claimed 79.2%, so the two are within 1.5 points of each other. In this range the stated probability has meant roughly what it says.
Where we disagree with the market
Bookmakers price Sparta Prague at 1.34, which implies about 74.6%. Our model has it at 82.7% — 8.1 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
Sparta Prague carry a rating of 1637 against 1484 for Lillestrom, a gap of 154 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, Sparta Prague's attack should find room against Lillestrom's defence, by 137 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 78.2%. 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.