Mitch is definitely a skilled runner but any time he's on stage I can only remember Best of NES 2019 (I think?) where he no-showed for his run setup while I was on hosting duty. I panicked for 25 minutes trying to reach him.
I got a DM from someone at random 5min before his run and they said "Mitch doesn't want to join the discord group for the marathon and doesn't want to talk to a random setup person so I'm going to set him up, just capture his stream and don't talk to him"
GDQ (SMB3), salt about the runner