Event: Frome Club IT

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Opponent Rating Result
Geoff T Berryman 96 ½ - ½
William Veitch 93 1 - 0
Gerald Udell 103 1 - 0
Gabriel Keech 118 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

403 = (410 + 400 * (3 - 0)) / 4)

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