Event: Division A

Opponent Rating Result
Peter J Mulleady 175 ½ - ½
Tim Hilton 171 0 - 1
William O'Rourke 154 0 - 1
Mark A Whitehead 168 0 - 1
Dave S Almond 138 1 - 0
Phillip J Taylor 149 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

26 = (955 + 400 * (1 - 3)) / 6)

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