Event: Worcestershire Challengers' League

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Opponent Rating Result
David Smith 1801 0 - 1
Arnold G Kirkland 1551 0 - 1
John F Varilone 1639 1 - 0
Phil Maddocks 1734 0 - 1
Arnold G Kirkland 1551 1 - 0
Robert (Bob) Carter 1403 1 - 0
Paul Thomas 1353 1 - 0
Matthew Jordan 1745 ½ - ½
John Chester 1717 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1610 = (14494 + 400 * (4 - 4)) / 9)

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