Event: NSDCA Division 4

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Opponent Rating Result
Carlos Smitalos 1000 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

600 = (1000 + 400 * (0 - 1)) / 1)

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Opponent Rating Result
Stephen Merry 1200 1 - 0
Warren Porter 750 1 - 0
Steve Knott 1150 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1167 = (3100 + 400 * (2 - 1)) / 3)