Event: MH Brown Summer League Section 2

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Opponent	Rating	Result
Bryan Wilson	1495	1 - 0
Ewan Black	1539	1 - 0
Steve King	1506	0 - 1

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

1647 = (4540 + 400 * (2 - 1)) / 3)