Event: Division 1

Opponent Rating Result
Ian R White 173 ½ - ½
Paul R Masters 177 1 - 0
Nigel Hosken 183 0 - 1
Jim Beaty 0 ½ - ½
Philip J Meade 163 1 - 0
Magdi Idris 0 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

116 = (696 + 400 * (2 - 2)) / 6)

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