Event: Macclesfield Quick Play

Opponent Rating Result
Colin FS Davison 1898 0 - 1
Colin FS Davison 1898 0 - 1
Geoff Laurence 1740 0 - 1
Geoff Laurence 1740 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1419 = (7276 + 400 * (0 - 4)) / 4)

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