Event: 6-Board Division 2

Opponent Rating Result
Keith Porteous 1673 0 - 1
Peter T Perkins 1649 0 - 1
Stephen Brown 1522 ½ - ½
Paul GE Carter 1689 ½ - ½
Nick Whetton 1612 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1389 = (8145 + 400 * (0 - 3)) / 5)

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