Event: Essex Summer Rapid Knockout

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Opponent	Rating	Result
Michael GA Wilson	1660	1 - 0
Michael GA Wilson	1660	½ - ½
Matthias Lataille	1791	½ - ½
Matthias Lataille	1791	0 - 1
Rafael Couto Cabral	1460	1 - 0
Rafael Couto Cabral	1460	1 - 0
Peter Jaszkiwskyj	1892	½ - ½
Peter Jaszkiwskyj	1892	0 - 1

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

1751 = (13606 + 400 * (3 - 2)) / 8)