Event: C Division

Opponent Rating Result
J Alan Stockley 1424 0 - 1
Stephen Gatenby 1266 1 - 0
Ammar Alghasra 1350 0 - 1
Barry Hopkins 1400 0 - 1
Stephen Gatenby 1245 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1097 = (6685 + 400 * (1 - 4)) / 5)

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