Event: Derbyshire Individual

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Opponent Rating Result
Jaime Castro 151 1 - 0
Andrew Toothill 162 ½ - ½
Matthew Bubis 135 ½ - ½
Stephen G Wootton 127 1 - 0
Ray J Forey 169 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

309 = (744 + 400 * (2 - 0)) / 5)

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