Event: D&DCL Cup QP

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Opponent Rating Result
Derek A Jarvis 0 ½ - ½
Tomasz D Adamski 0 1 - 0
John C Tompson 0 0 - 1
Martin Pettinger 0 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-100 = (0 + 400 * (1 - 2)) / 4)

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