Event: John Swan Trophy

Opponent Rating Result
Steve J Pullinger 1874 1 - 0
Biran S Shah 1746 0 - 1
David J Payne 1728 0 - 1
Jim McAvoy 1682 0 - 1
Heather Enid Walker 1125 0 - 1
Andrew S Pandian 1309 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1311 = (9464 + 400 * (1 - 5)) / 6)

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