Event: League Division One

Opponent Rating Result
Andrew Bak 179 ½ - ½
Callum Welsh 158 1 - 0
Roger W Jennings 170 ½ - ½
Paul A Johnson 159 ½ - ½
Peter JE Ackley 189 ½ - ½
Bernard Chan 192 0 - 1
Peter D Rooney 184 ½ - ½
David A Patrick 160 ½ - ½
Roger W Jennings 170 ½ - ½
Paul A Johnson 159 1 - 0
Jonathan W Arnott 192 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

174 = (1912 + 400 * (2 - 2)) / 11)

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