Event: Division 2

Opponent Rating Result
Michael J Hamilton 169 0 - 1
Michael J Reddie 144 1 - 0
Greg Daniel 140 ½ - ½
David W Fryer 167 0 - 1
Marc A Bryant 139 1 - 0
Chris Lake 156 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

86 = (915 + 400 * (2 - 3)) / 6)

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