Event: Division A

Opponent Rating Result
Barry J Hymer 176 0 - 1
Graham W Dobson 171 ½ - ½
Paul A Evans 181 0 - 1
Cliff H Rutlidge 157 ½ - ½
Conor Reaney 167 1 - 0
Tom Leah 171 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

171 = (1023 + 400 * (2 - 2)) / 6)

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