Event: Club Championship

Opponent Rating Result
Joey Fell 1297 ½ - ½
Nathaniel Mackenzie 1255 0 - 1
Mike R Stokes 1960 0 - 1
David Halpin 1180 1 - 0
Jeff Dutton 1576 0 - 1
Ethan Gaffney 1365 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1239 = (8633 + 400 * (1 - 4)) / 6)

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