Event: Division 2

Opponent Rating Result
Mark R A Murrell 1857 1 - 0
Neville H Twitchell 1868 0 - 1
Peter A Nickals 1744 0 - 1
Graham J Kershaw 1720 0 - 1
Rasike Attanayake 1715 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1701 = (8904 + 400 * (2 - 3)) / 5)

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