Event: Derby Chess Club Championship

Opponent Rating Result
Shambavi Hariharan 0 1 - 0
Stuart Marshall 0 1 - 0
Justin Smith 0 1 - 0
David Williams 0 0 - 1
David Smith 0 1 - 0
John C Tompson 0 1 - 0(def)
performance = (sum(opponents ratings) + 400(wins-losses)) / games

240 = (0 + 400 * (4 - 1)) / 5)

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