Event: Summer cup 24

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Opponent	Rating	Result
Gerald Cattouse	1300	0 - 1
Daniel Chambers	1000	1 - 0
Mridul Sharma	1300	½ - ½

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

1200 = (3600 + 400 * (1 - 1)) / 3)