Event: St Andrews Summer Tournament

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Opponent Rating Result
Darren Tomlinson 1076 1 - 0
Jacob Jackson 1455 1 - 0
David Atkin 1326
Ronald Botham 1112 1 - 0
Dan Malbon 1300 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1536 = (4943 + 400 * (3 - 0)) / 4)

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