Event: Summer League Section 2a

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Opponent	Rating	Result
F Hal Jorna	1633	1 - 0
Keith Porteous	1673	1 - 0
Andrew Donegan	1335	0 - 1

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

1680 = (4641 + 400 * (2 - 1)) / 3)