Event: 3rd Cornwall Spring Open

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Opponent Rating Result
David O Collier 1957 1 - 0
Stephen P Dilleigh 2021 ½ - ½
Lloyd Retallick 2070 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2283 = (6048 + 400 * (2 - 0)) / 3)

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