Event: Online League Season 2, Division 1

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Opponent	Rating	Result
Oskar A Hackner	2417	0 - 1
Mark S Allison	0	0 - 1
Peter Micklethwaite	2013	½ - ½
Chris N Ross	2283	0 - 1
Peter Micklethwaite	1988	1 - 0
Marek Gajdosz	1931	½ - ½
Paul Cumbers	2193	0 - 1

performance = (sum(opponents ratings) + 400(wins-losses)) / games

1661 = (12825 + 400 * (1 - 4)) / 7)