Event: Stowe

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Opponent	Rating	Result
Robert Layter	1362	½ - ½
Aubrey Chow	1257	1 - 0
Ben Bowers	0	0 - 1

performance = (sum(opponents ratings) + 400(wins-losses)) / games

873 = (2619 + 400 * (1 - 1)) / 3)