Event: Division 2

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Opponent Rating Result
John H Sleggs 114 0 - 1
Joel Francis 125 0 - 1
Steve Holtz 93 1 - 0
Richard Sida 107 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-90 = (439 + 400 * (1 - 3)) / 4)

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