Event: Division 1

Opponent Rating Result
Karl Bowden 2272 0 - 1
John A White 1991 ½ - ½
Andrew E Robertson 1855 ½ - ½
Paul H Kenning 1800 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1880 = (7918 + 400 * (0 - 1)) / 4)

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