Event: Division 3

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Opponent Rating Result
Hambel M Willow 138 1 - 0
Colin Abell 115 ½ - ½
Roger W Walker 127 0 - 1
Alberto Gissi 119 0 - 1
John HM Smith 114 1 - 0
Neville S Jones 95 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

51 = (708 + 400 * (2 - 3)) / 6)

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Opponent Rating Result
Colin Abell 115 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-285 = (115 + 400 * (0 - 1)) / 1)