Event: City Chess Swiss 2022-23

PDF Excel

Opponent	Rating	Result
Widianto Siek	2027	0 - 1
Daniel Potter	1647	1 - 0
Atta Chui	1803	0 - 1
Antony C Hall	1849	0 - 1
Atta Chui	1803	1 - 0

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

1746 = (9129 + 400 * (2 - 3)) / 5)