Event: Jim Barrington Plate

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Opponent	Rating	Result
Matthew Coulson	83	0 - 1
John P Donovan	92	1 - 0
T Giles Stanton	132	½ - ½

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

102 = (307 + 400 * (1 - 1)) / 3)