Event: SCCU County Championship: u1850

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Opponent	Rating	Result
David J White	1776	0 - 1
Ben Harte	1674	½ - ½
John Rennocks	1657	1 - 0

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

1702 = (5107 + 400 * (1 - 1)) / 3)