Choi Wongyong
Korean 8-dan professional.
Qualified by 2001, 2p in 2003, 3p in 2004, 4p in 2006, 5p in 2007, 6p in 2009, 7p in 2012, 8p in 2019.
He might have an article under another romanisation, since he's been a pro for a while. That may also be the reason for Go4Go not having his games between 2013 and 2019.
He beat Lee Changho in the 2006 Korean League.