Event: Mick Croft Cup

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Opponent	Rating	Result
Mats Nordgren	1670	1 - 0
Chris Carpenter	1594	1 - 0
Adrian Tottenham	1480	1 - 0

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

1981 = (4744 + 400 * (3 - 0)) / 3)