Event: NSDCA Division 4

Opponent Rating Result
Maria Sangurska 1100 1 - 0
Gerald Parton 1158 1 - 0
Matthew Dean 1165 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1541 = (3423 + 400 * (3 - 0)) / 3)

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