Event: Division 2

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Opponent Rating Result
David Williams 162 1 - 0
Keith Aiton 157 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

160 = (319 + 400 * (1 - 1)) / 2)

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Opponent Rating Result
Dushan Charith Malimage 151 ½ - ½
Maurice J Hill 150 1 - 0
John Pocock 100 1 - 0
Ian J Burridge 134 1 - 0
Nigel Wright 135 0 - 1
Tomasz D Adamski 121 ½ - ½
John Crawley 91 1 - 0
Alan J Nelder 126 1 - 0
Graham Neil 122 ½ - ½
Ian J Burridge 134 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

246 = (1264 + 400 * (5 - 2)) / 10)