Event: Club Championship 2022

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Opponent	Rating	Result
Jim I Wrigglesworth	1438	½ - ½
Amir Allidina	0	0 - 1
Shreya Wani	0	½ - ½
Robert Parsons	1650	0 - 1
Ray Jennings	0	0 - 1
Cherag Irani	1695	0 - 1
Ashok Shah	50	1 - 0

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

519 = (4833 + 400 * (1 - 4)) / 7)