Event: Radley

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Opponent Rating Result
Leonid Ippolitov 0 0 - 1
Ben Norris 0 1 - 0
Alen Joseph Biju 1248 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

283 = (1248 + 400 * (1 - 2)) / 3)

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