Event: NSDCA Open Cup

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Opponent	Rating	Result
Geoff Laurence	1778	1 - 0
Samuel A Parry	2018	½ - ½
Lee Farrington	1950	1 - 0

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

2182 = (5746 + 400 * (2 - 0)) / 3)