Event: Division 2

Opponent Rating Result
Ethan Luc 2004 ½ - ½
David Ye 1978 0 - 1
Howard Groves 1853 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1945 = (5835 + 400 * (1 - 1)) / 3)

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