Event: Kidsgrove Roy Bennett Trophy

Opponent Rating Result
Steven P Nixon 99 0 - 1
David S Johnson 113 0 - 1
Andrew Crosby 90 1 - 0
Julian P Cook 90 0 - 1
Derek H Northage 113 0 - 1
David S Johnson 113 0 - 1
Andrew Crosby 90 0 - 1
Julian P Cook 90 0 - 1
Derek H Northage 113 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-210 = (911 + 400 * (1 - 8)) / 9)

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