Event: Division Three

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Opponent	Rating	Result
Nathan Lester	1337	1 - 0
Dan Donohoe	1494	1 - 0
Omar Selim	1500	1 - 0

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

1844 = (4331 + 400 * (3 - 0)) / 3)