Event: Division 3

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Opponent Rating Result
Douglas W Stevenson 104 1 - 0
Robert W Counsell 123 0 - 1
Graham F Botfield 0 0 - 1
William F Tracey 122 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-113 = (349 + 400 * (1 - 3)) / 4)

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