Event: Division 1

Opponent Rating Result
Edmund C Player 207 0 - 1
Stephen W Ruthen 167 0 - 1
Z Zia Mohammed Quader 161 0 - 1
John G Daugman 156 0 - 1
James Pack 159 1 - 0
Richard H Donaghay 147 1 - 0
Paul McMahon 173 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

53 = (1170 + 400 * (2 - 4)) / 7)

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