Event: SCCA Division 3

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Opponent Rating Result
Roger N Smith 1383 0 - 1
Bernard Ross 1242 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

913 = (2625 + 400 * (0 - 2)) / 2)

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Opponent Rating Result
Bernard Ross 0 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

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