Event: B Division

Opponent Rating Result
Robert McLean 2108 0 - 1
Dave Toole 1901 0 - 1
Jon I Lonsdale 1902 ½ - ½
Ondrej Chalupa 1787 1 - 0
John Reyes 1634 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1786 = (9332 + 400 * (1 - 2)) / 5)

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