Event: Division 1

Opponent Rating Result
David C Chandler 1900 0 - 1
David J Millward 1942 ½ - ½
Robert JV Davies 1769 1 - 0
Mark Oakden 1586 1 - 0
Robert Petrovai 1688 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1937 = (8885 + 400 * (3 - 1)) / 5)

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