Event: Worcester & District League

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Opponent Rating Result
Simon Lloyd 1450 1 - 0
Joe Whiley 1156 ½ - ½
John Pendrous 1477 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1494 = (4083 + 400 * (1 - 0)) / 3)

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