Event: Worcestershire Championship League

Opponent Rating Result
Scott Russell 1817 ½ - ½
Nigel S Towers 1845 ½ - ½
Phil Maddocks 1734 0 - 1
Mark Bethel 1795 ½ - ½
Rob Sutton 1659 0 - 1
Arnold G Kirkland 1551 1 - 0
Joshua Clarke 1788 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1684 = (12189 + 400 * (1 - 2)) / 7)

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