Event: Club Championship

Opponent Rating Result
Peter Gregory 1578 1 - 0
Jeff N Spratt 2013 0 - 1
Jonathan Round 1944 0 - 1
Ethan Gaffney 1360 1 - 0
Mike Berry 1553 0 - 1
Richard Tate 1556 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1667 = (10004 + 400 * (3 - 3)) / 6)

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