Event: Division A

Opponent Rating Result
William Gee 2087 1 - 0
Phillip J Taylor 1888 0 - 1
James McKiernan 1955 0 - 1
Paul A Evans 2052 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1796 = (7982 + 400 * (1 - 3)) / 4)

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