Event: League Division One

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Opponent	Rating	Result
Tom Brown	1992	1 - 0
Joshua Pink	2031	0 - 1
George Harman	1909	1 - 0
Joshua Pink	2031	½ - ½
Mike J Donnelly	1959	½ - ½

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

2064 = (9922 + 400 * (2 - 1)) / 5)