Event: U1940 Tournament

Opponent Rating Result
Sean Smith 1528 1 - 0
John Scotter 1537 1 - 0
Andrew D Bettley 1787 ½ - ½
Andrew D Bettley 1787 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1760 = (6639 + 400 * (2 - 1)) / 4)

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