Event: Leon Garfield Rapid-Play Cup

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Opponent Rating Result
Colin G Gregory 1451 0 - 1
John L Clarke 1361 0 - 1
Jonny Nicholson 1200 0 - 1
Keith C Findley 1747 0 - 1
John L Clarke 1350 0 - 1
Chris Carpenter 1458 0 - 1
Leon A Garfield 1298 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1009 = (9865 + 400 * (0 - 7)) / 7)

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