Event: MH Brown Summer League Section 1

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Opponent	Rating	Result
Mark I Collinson	1959	1 - 0
David E Lord	1936	½ - ½
Joe Varley	2120	1 - 0

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

2272 = (6015 + 400 * (2 - 0)) / 3)