Event: 560 Max

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Opponent Rating Result
Mihai Zbircea 147 0 - 1
Tim A Lane 161 0 - 1
Mihai Zbircea 147 1 - 0
Tim A Lane 161 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

54 = (616 + 400 * (1 - 2)) / 4)

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