Event: Division 2

Opponent Rating Result
Andrew C Wainwright 1981 ½ - ½
Robert Pells 1700 0 - 1
Nick Mullan 1554 1 - 0
Paul Butterworth 1818 0 - 1
Chris S Edwards 1658 0 - 1
Dave Colledge 1672 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1664 = (10383 + 400 * (2 - 3)) / 6)

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