Event: Essex Summer Rapid Knockout

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Opponent Rating Result
Neville H Twitchell 1855 1 - 0
Neville H Twitchell 1855 ½ - ½
Tamas Somogyi 2141 1 - 0
Tamas Somogyi 2141 0 - 1
John H Hodgson 2191 ½ - ½
John H Hodgson 2191 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2196 = (12374 + 400 * (3 - 1)) / 6)

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