Event: Division 1

Opponent Rating Result
Francis Rayner 193 ½ - ½
Keith Homeyard 161 1 - 0
Alex B Taylor 163 1 - 0
Adrian O Pickersgill 170 1 - 0
Duncan R Badham 152 1 - 0
James C Mansson 189 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

438 = (1028 + 400 * (4 - 0)) / 6)

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Opponent Rating Result
Geoffrey H James 177 ½ - ½
Max Bennett 171 0 - 1
Matthew Pannett 143 1 - 0
Peter Larwood 164 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

164 = (655 + 400 * (1 - 1)) / 4)