Event: Baum Trophy summer league

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Opponent	Rating	Result
Ashley Freeman	1879	0 - 1
Peter A Nickals	1647	0 - 1
Tu Senan	1574	0 - 1

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

1300 = (5100 + 400 * (0 - 3)) / 3)