Event: Essex Summer Rapid Plate

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Opponent	Rating	Result
Huzaifa Baig	1584	1 - 0
Huzaifa Baig	1584	0 - 1
George Horan	1819	1 - 0
George Horan	1819	½ - ½

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

1802 = (6806 + 400 * (2 - 1)) / 4)