Event: 4th Cornwall Spring Minor

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Opponent Rating Result
Tony Lopez 1349 1 - 0
Martyn J Maber 1485 ½ - ½
Douglas Bramley 1325 0 - 1
Azhar Ghose 1373 0 - 1
Hazel Welch 1212 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1349 = (6744 + 400 * (2 - 2)) / 5)

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