Event: A Division

Opponent Rating Result
H Michael Lamb 2090 ½ - ½
Chris Vassiliou 1963 ½ - ½
Peter J Mulleady 1989 ½ - ½
Kyle Pelling 2030 0 - 1
Ondrej Chalupa 1787 ½ - ½
Dave Toole 1901 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1893 = (11760 + 400 * (0 - 1)) / 6)

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