6''1 @ heavyweight. Would this be much of a problem?

Do you mean heavyweight (under 91kg) or super heavyweight? (Over 91kg)? You could do either, but most guys in the heavyweight division are closer to your size and you're unlikely to get outsized too often. If it were me I'd go heavyweight as I'd rather be a good sized heavy rather than a small super heavy.....plus in the amateurs it can be hard to get fights against super heavys as there tends to be less super heavys around.

If you look at the heavy division in terms of Olympic champs and world amateur champs, they are all in or around your size. Getting under 91kg for a 6'6" adult male isn't going to be easy, so you won't see many of them in the heavy division.

 

You can fight heavy or super heavy. Im 6`0 and fight in super heavy.

Of course majority of opponents are taller than that so it does pose some problems

 

I would say the average height of opponent is about 190cm (6`3).

Of course the size limits some options for me, but then again every one is different. There are smaller guys who use counter punching and out jab their longer opponents. But when you are facing 200cm guys its pretty hard to do.

I fight mostly as a slugger

 

Well now it works better than it used to do, because they changed the scoring and removed the headgear. Im not saying the slugging is optimal style for short heavy its just most natural for me.

Anyways I think you should not worry about those things at this point. Worry about being best possible shape in your first fight.
In low experience fights usally the guy with better stamina wins

 

Mike Tyson was a 5'10" heavyweight so I don't think height matters too much. Also, height doesn't equal boxing skill. Being short can be used as an advantage if you know how to use it as well as being tall.

 

Look at the amateur heavys/super heavys and pro heavys.... the biggest guys aren't always the best.

There are more factors to consider. As some of the other guys have pointed out, size is only a big factor where skill levels are equal at heavy/super heavy. Look at Kevin McBride vs Tomasz Adamek. You had a 285lb, 6'6" McBride being completely outboxed by a 215lb 6'2" Adamek.

Another example would be I watched a 6'1" Ruslan Chagaev (some say he's smaller) in Belfast beat much bigger guys to become the 2001 World Amateur super heavy champ. His skill level was much better than his competitors and he had good fitness back then.

I would say conditioning and technical skills are more important than size. If you have better fitness and skills than bigger super heavys, chances are you will beat them. If all things are equal though you may struggle against bigger guys.

 

Im 6'0 198 but about half the time have to gain 3-4 lbs to fight at super because there are fewer heavys... its not a problem for me, everyone is different though. do you mind fighting tall guys?

 

as long as you and your coach are comfortable with it, who cares what anyone else thinks