Event: NCCA League Division 4

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Opponent Rating Result
Edward Hackford 1525 1 - 0
Vivash Samarakoon 1500 0 - 1
David P Jones 1354 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1593 = (4379 + 400 * (2 - 1)) / 3)

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