Event: Summer League Section 2

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Opponent	Rating	Result
Colin Hurst	1020	1 - 0
JC Johnson	1000	1 - 0
Andrew Donegan	1050	0 - 1

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

1157 = (3070 + 400 * (2 - 1)) / 3)