Event: League Division One

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Opponent	Rating	Result
Warrick Scaife	1698	1 - 0
Ben Graff	1827	1 - 0
Oscar Butler	1345	1 - 0
Ivan Nikolov	0	0 - 1
James Parkinson	0	1 - 0
Mike J Donnelly	1930	½ - ½
Luke Nelson	2013	0 - 1
Ivan Nikolov	0	1 - 0

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

1252 = (8813 + 400 * (5 - 2)) / 8)