Event: Sheffield Individual Championships

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Opponent Rating Result
Geoffrey D Brown 1774 0 - 1
Colin Reid 1491 ½ - ½
Midhun Varghese 1422 1 - 0
W (Bill) Ward 1666 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1488 = (6353 + 400 * (1 - 2)) / 4)

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