Event: MH Brown Summer League Section 2

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Opponent	Rating	Result
Andrew Reynolds	1262	0 - 1
Jan W Gevelaar	1000	0 - 1
Stuart Sharp	1539	0 - 1

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

867 = (3801 + 400 * (0 - 3)) / 3)