Event: Division B

Opponent Rating Result
Paul N Fearnhead 106 0 - 1
Peter A Wilson 145 ½ - ½
Darren Pickering 100 1 - 0
Andrew R De Santos 107 0 - 1
Graham Taylor 110 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-46 = (568 + 400 * (1 - 3)) / 5)

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