Event: A Division

Opponent Rating Result
Glenn Trueman 1913 ½ - ½
Armand Catz 1804 1 - 0
Christopher Hodgson 1846 1 - 0
Marc Constantine 1822 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2146 = (7385 + 400 * (3 - 0)) / 4)

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