Event: Rated Rapidplay Games

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Opponent	Rating	Result
David J Payne	1777	½ - ½
David J Payne	1777	½ - ½
David J Payne	1777	1 - 0

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

1910 = (5331 + 400 * (1 - 0)) / 3)