Why do boxers wake up at 4:30am in the morning to run?

[wesrman]

Well, I dont see why you can't just wake up at normal time and do your running before breakfast.
Same thing

Most boxers work full time and go to the boxing gym after work. So getting their roadwork in early is the best option.

It could be any time obv.

[TyBuff]

I think it has more to do with them having to go hard at the gym later. Gym work would be a lot harder coming fresh off of a 5+ mile run and the straight into the gym. If you get your run in early you can have some time for your legs to rest then get into the gym for another workout. I know I wouldnt be able to go through a couple of hours of doing bag work, focus mits, sparring, skipping rope, etc.... if I just got done running.