Event: OTB Club Championship 23/24

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Opponent	Rating	Result
Mark Edmundson	0	1 - 0
Richard Manchester	0	0 - 1
Paul McGuigan	0
Michael Siddle	0	0 - 1
Bryan J Bainbridge	0
Robert Berry	0
Chris Clynes	0
Deborah Edmundson	0
Mark Edmundson	0
Richard Manchester	0
Paul McGuigan	0
Michael Siddle	0
Bryan J Bainbridge	0
Robert Berry	0	1 - 0
Chris Clynes	0
Deborah Edmundson	0

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

0 = (0 + 400 * (2 - 2)) / 4)