Event: NSDCA MMS Division 2

Opponent Rating Result
Malcolm A Roberts 1668 1 - 0
Malcolm A Roberts 1668 1 - 0
Karol Grzybowski 1803 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1980 = (5139 + 400 * (2 - 0)) / 3)

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