Event: Club Championship

Opponent Rating Result
Amelia Wheeler 1490 1 - 0
Brian H Coop 1869 0 - 1
David Callaghan 1110 1 - 0
Mike Berry 1543 1 - 0
Jeff N Spratt 2000 ½ - ½
Peter Rawcliffe 1682 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1816 = (9694 + 400 * (4 - 1)) / 6)

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