Event: Macclesfield Individual Championship

Opponent Rating Result
Martin R Olsson 156 0 - 1
John Paul J Taylor 155 0 - 1
Philip J Colville 153 1 - 0
Geoff Laurence 146 ½ - ½
Joachim Trier 138 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

70 = (748 + 400 * (1 - 2)) / 5)

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