Event: Haslemere Trophy

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Opponent Rating Result
Jai Kothari 1690 1 - 0
Jai Kothari 1690 0 - 1
Michael J Lord 1600 ½ - ½
Michael J Lord 1600 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1745 = (6580 + 400 * (2 - 1)) / 4)

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