Event: John Swan Trophy

Opponent Rating Result
Alexander New 1879 0 - 1
Heather Enid Walker 1125 1 - 0
Jeff R Dawson 1734 0 - 1
Steve J Pullinger 1874 0 - 1
Andrew S Pandian 1309 ½ - ½
Jim McAvoy 1682 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1534 = (9603 + 400 * (2 - 3)) / 6)

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