Event: NSDCA Division 4

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Opponent Rating Result
Kobus Nienaber 1485 0 - 1
Raymond F Rhodes 1245 1 - 0
Daniel J McLaren 1460 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1263 = (4190 + 400 * (1 - 2)) / 3)

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