Event: NSDCA Division 3

Opponent Rating Result
George Bulbeck 1581 ½ - ½
Joe Hulme 1250 0 - 1
David A Hallen 1465 ½ - ½
Mycle Scheuer 1479 ½ - ½
David Roberts 1109 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1297 = (6884 + 400 * (0 - 1)) / 5)

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