Event: Woodhouse Cup

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Opponent	Rating	Result
Samir Cradock	1809	1 - 0
Douglas Vleeshhouwer	1977	½ - ½
Robert A Newton	1950	1 - 0
Oliver Graham	1893	0 - 1
Randolph E Donahue	1844	1 - 0
Martin Carpenter	2049	½ - ½

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

2054 = (11522 + 400 * (3 - 1)) / 6)