Event: Club Championship 23

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Opponent	Rating	Result
Richard Ball	1392	0 - 1
Oliver Grabowski	1009	0 - 1
Siyon Sujeeth	950	0 - 1

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

717 = (3351 + 400 * (0 - 3)) / 3)