I don't think you can stereotype wrestlers when it comes to academics. I've seen wrestlers who graduated first in their class, and others that were close to last in their class. It takes all types.
Ya I agree, you really have to work your butt off to make the grades and wrestle tough. I work hard to keep up with homework every night, sometimes 1-3hrs. of homework and studies. And sometimes I think to myself, "was taking 4 college course classes my Senior year the best choice?" But then I remind myself: I'm not going to wrestle for a living so I better keep getting as high a GPA as I can! Its alot of work but belive me its possible to do both!