Event: Division 3

Opponent Rating Result
Peter Newton 0 ½ - ½
Alan PH Norman 1693 1 - 0
Tom Roy 1574 1 - 0
Andrew Last 1450 1 - 0
Peter Newton 1526 0 - 1
Harvey Kelly 1577 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1437 = (7820 + 400 * (3 - 1)) / 6)

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