Event: Club Championship 2022

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Opponent	Rating	Result
Graham J Ashcroft	1986	0 - 1
Joyal Kenus	1646	1 - 0
David Tuke	1645	0 - 0

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

1816 = (3632 + 400 * (1 - 1)) / 2)