Event: R Division

Opponent Rating Result
Suleiman Nisar 1367 ½ - ½
Paul H Czyrski 1100 1 - 0
Suleiman Nisar 1367 0 - 1
Paul H Czyrski 1100 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1334 = (4934 + 400 * (2 - 1)) / 4)

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