Xgoals
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FC Porto vs Penafiel on Xgoals: the Primeira Liga match on 22 May 2015. The final score, events, line-ups and statistics stay on this page. Where the match had xG (expected goals), Xgoals kept it minute by minute: how many goals each side's chances were worth beyond its score.
xG explained
xG (expected goals) is the chance that a shot becomes a goal. A team's xG adds up its chances; its xG Gap = xG − goals. Alert levels Warm, Orange, Red and Deep red come from Xgoals Live's own tracker.