Event: Derby & District Division 1

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Opponent	Rating	Result
John C Tompson	2070	1 - 0
Simon N Gilmore	2067	½ - ½
Neil Cameron	1657	1 - 0

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

2198 = (5794 + 400 * (2 - 0)) / 3)