Event: Essex Summer Rapid Knockout

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Opponent	Rating	Result
Martin Van Tol	1769	1 - 0
Martin Van Tol	1769	1 - 0
Terry D Whitton	1909	½ - ½
Terry D Whitton	1909	1 - 0

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

2139 = (7356 + 400 * (3 - 0)) / 4)