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Event: Sheffield Chess Centre U1750

Opponent Rating Result
Arthur Eastham 1809 ½ - ½
Ivan Dunnachie 1502 1 - 0
Essa Abakr 1750 0 - 1
Paul Leonard 1534 0 - 1
John Gillett 1390 ½ - ½
Kirin Harrington 1341 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1554 = (9326 + 400 * (2 - 2)) / 6)

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