I once took 5 or six solid jabs to the face before I went down. lol.
I’m actually a kicker though, idk why I was trying to fist fight the guy.
Side kicks- sliding side kicks- hopping side kicks, round kicks- and I have a really nasty tornado kick and 360 back kick/ hook kick… Jumping straight kick I can hit the face on a tall person but I’d usually just go for the chest…
I also use elbows and body slams a lot… I dont punch unless the person is a total wuss.
However there’s a reason I have to be like that… I can’t grapple for poop and I’m probably lighter weight than most people— If I ever end up on the ground and I don’t get up right away I’m DONE! DONE!!! lol.
Like someone as muscular as you I would prolly just run away honestly.