Arsenal are creating far more on the road
Expected goals (xG) measures the quality of chances. Over their last 5 home games Nott'm Forest created 1.3 and allowed 1.1 a game. Over their last 5 away games Arsenal created 2.0 and allowed 1.4.
The model would have called Arsenal win, 0–1, with a 50% chance (bookmakers 59%). Here is everything that went into it.
Expected goals (xG) measures the quality of chances. Over their last 5 home games Nott'm Forest created 1.3 and allowed 1.1 a game. Over their last 5 away games Arsenal created 2.0 and allowed 1.4.
Last five league games: Nott'm Forest took 5 points, Arsenal took 12.
Arsenal have 27 points from their last 10 league games, but their chances were worth 21. Nott'm Forest have 10, from chances worth 16. We rate teams on their chances, so Arsenal get less credit than their results.
2 of the last 4 meetings were drawn or won by one goal. Past meetings count for little in the model.
The biggest single factor is Arsenal's attack. If Arsenal's attack were only average, the away win chance would drop to 40%.
Nott'm Forest 0–1 Arsenal, away win, solid