Event: James Essinger Trophy - Summer Swiss

Opponent Rating Result
Bob Wallace 1387 0 - 1
Leon A Garfield 1456 1 - 0
John L Clarke 1341 1 - 0
Roy J McAloney 1401 1 - 0
Paul Worledge 1806 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1558 = (7391 + 400 * (3 - 2)) / 5)

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