Event: Worcestershire Rapidplay league

Opponent Rating Result
Scott Oxtoby 1651 0 - 1
David Spowart 1771 ½ - ½
Chetan Mutagekar 0 0 - 1
David Close 1684 1 - 0
Andrew S Whitten 1657 ½ - ½
Nigel S Towers 1807 0 - 1
Scott Oxtoby 1651 0 - 1
David Spowart 1771 ½ - ½
Chetan Mutagekar 0 0 - 1
David Close 1684 ½ - ½
Andrew S Whitten 1657 0 - 1
Nigel S Towers 1807 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1228 = (17140 + 400 * (1 - 7)) / 12)

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