Event: A Division

Opponent Rating Result
Nikolay Milchev 2241 0 - 1
David Burgess 2050 0 - 1
Sarah N Longson 2123 0 - 1
Robert A Newton 1965 0 - 1
Chris Vassiliou 1932 1 - 0
Noel S McLaughlin 2058 ½ - ½
Matthew JE Searles 1991 ½ - ½
Damien McElvenny 1828 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1874 = (16188 + 400 * (1 - 4)) / 8)

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