Event: James Essinger Trophy - Summer Swiss

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Opponent Rating Result
Roy J McAloney 1412 0 - 1
Brian W Williamson 1318 1 - 0
Graham Wilson 1162
Clive J Le Baigue 1490 1 - 0
James Cole 1567
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1540 = (4220 + 400 * (2 - 1)) / 3)

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