Event: Club Championship 2023

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Opponent	Rating	Result
Michael A Redman	1565	1 - 0
Jon AN Lawrance	1783	0 - 1
James Yiming Wang	1477	1 - 0
Yijun Wang	1624	½ - ½
Daniel Donaghy	1718	0 - 1
Ashton Gadiot	1388	0 - 1
Jon AN Lawrance	1728	1 - 0
Charlie Wannasin Bell	1390	1 - 0

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

1634 = (12673 + 400 * (4 - 3)) / 8)