Event: LCA Division 2

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Opponent	Rating	Result
Gary Willson	475	1 - 0
Stuart MacDonald	1850	0 - 1
Nick Sykes	1826	½ - ½

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

1384 = (4151 + 400 * (1 - 1)) / 3)