Event: League Division 3

Opponent Rating Result
Keith Darley 1582 ½ - ½
Howard Brears 1647 1 - 0
Paul Smith 1166 1 - 0
C Rodney S Mitchinson 1200 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1699 = (5595 + 400 * (3 - 0)) / 4)

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