Event: OTB Club Challenge Standard

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Opponent Rating Result
John V Jestico 1494 1 - 0
Voldi Gailans 1297 1 - 0
Alfie Green 1500 1 - 0
Vittorio Nigrelli 1745 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1709 = (6036 + 400 * (3 - 1)) / 4)

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