Event: U1600 Team KO

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Opponent	Rating	Result
Liam Guest	900	1 - 0
George Mitchell	1482	1 - 0
Roy G Watson	1484	½ - ½

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

1555 = (3866 + 400 * (2 - 0)) / 3)