Event: U1650 Cup

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Opponent Rating Result
John Harvey 1317 ½ - ½
John Harvey 1337 0 - 1
Jemima Bostock 1000 0 - 1
Martyn Colebrook 1514 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

992 = (5168 + 400 * (0 - 3)) / 4)

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