Event: West of England Counties Online Championship

Opponent Rating Result
Philip Owen 1200 0 - 1
Martyn J Maber 1200 ½ - ½
Stephen D LeFevre 1338 0 - 1
Manuel David Jiménez Patiño 1699 1 - 0
Brian GE Gosling 1857 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1299 = (7294 + 400 * (1 - 3)) / 5)

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