Event: League Division 2

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Opponent Rating Result
Thomas LeGood 0 0 - 1
Jeff Dutton 1572 0 - 1
Jim R Postill 1410 1 - 0
Michael I Connor 1786 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

992 = (4768 + 400 * (1 - 3)) / 4)

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