Event: OTB Club Challenge Standard

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Opponent Rating Result
David Smith 1645 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1645 = (1645 + 400 * (0 - 0)) / 1)

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Opponent Rating Result
Matthias Lataille 1525 0 - 1
Matthias Lataille 1525 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1125 = (3050 + 400 * (0 - 2)) / 2)