Event: Division 1

Opponent Rating Result
John C Moore 1975 ½ - ½
Michael Catabay 1983 0 - 1
Ian Gooding 2081 0 - 1
David J Millward 1986 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1906 = (8025 + 400 * (1 - 2)) / 4)

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