Event: 24 / 25 Club Championship

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Opponent	Rating	Result
James W Ross	1947	0(def) - 1
Sanjay Sathishkumar	1269	1 - 0

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

1669 = (1269 + 400 * (1 - 0)) / 1)