Event: Preston Club Championship

Opponent Rating Result
Phillip J Taylor 149 1 - 0
Conor Reaney 167 0 - 1
Alan Pidcock 136 1 - 0
Geoffrey Pennington 143 1 - 0
Graham J Ashcroft 163 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

392 = (758 + 400 * (4 - 1)) / 5)

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