Event: 4-Board Division 2

Opponent Rating Result
John Thompson 1433 ½ - ½
Josh Penny 1000 1 - 0
A Peter Owst 1571 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1335 = (4004 + 400 * (1 - 1)) / 3)

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