Portsmouth vs Stoke City
Our model puts a Portsmouth win at 48.2% in this Championship fixture — a moderate lean. Expected goals run 1.47 to 0.98.
What this probability has been worth
A number is worth what it has been worth. Across 2,454 predictions published before kick-off and scored against the result afterwards, the calls we priced between 45% and 55% came in 48.7% of the time — 748 fixtures in that band. The model claimed 49.6%, so the two are within 0.9 points of each other. In this range the stated probability has meant roughly what it says.
Evenly rated
There is almost nothing between these two on rating — 1521 against 1509, a gap of 12 points. Fixtures this evenly matched are where a model has least to say: the probabilities below are honest, but they are close to a coin weighted only slightly.
Finding the target
Portsmouth struggles to hit the target: 26.4% of their shots are on goal over their last matches. The average across the sides we have figures for is 33.9%. Accuracy is not the same as scoring — it says how much of a side's shooting is worth a goalkeeper's attention, which is the part that does not swing as wildly from week to week as goals do.