Event: Plummer Knight

Opponent Rating Result
Jan Ten Sythoff 1675 ½ - ½
Andrew Caswill 1465 1 - 0
Paul Edwards 0 ½ - ½
Paul R Selby 1779 0 - 1
Anthony Stanton 1735 ½ - ½
Dona Strauss 1683 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1456 = (8337 + 400 * (2 - 1)) / 6)

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