Event: U2000 2nd Chess Centre Rapid

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Opponent	Rating	Result
Nathan Madzia	1696	1 - 0
Oliver Graham	1761	0 - 1
Leon Skeldon	1638	0 - 1
Tim Roth	1458	1 - 0
George Swanson	1658	1 - 0

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

1722 = (8211 + 400 * (3 - 2)) / 5)