Event: 480 Max

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Opponent Rating Result
Peter W Lawrence 125 0 - 1
Peter W Leary 124 1 - 0
Peter W Lawrence 125 0 - 1
Peter W Leary 124 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-76 = (498 + 400 * (1 - 3)) / 4)

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