You are welcome to follow the link below to my Printroom galleries and check out the price list I use for most of the sports/events there. Just go into any of the galleries and click on any thumbnail to see a complete list of products and prices (there are over 100 products, considering all the possible print sizes and finishes, plus printable items.... I'll be adding some new ones soon, including some seasonal stuff).
In my area (N. Calif.) there are photographers who charge less and photogs who try to charge more (some a lot more.... I have no idea how that's working out for them, though... I suspect they aren't selling much).
I'm not sure why you wrote about being "sensitive to professionals"... You are a professional, as far as I'm concerned, simply for the fact that you are charging for your product. Of course you are free to charge whatever you want (and there are times when it's appropriate to discount or even give some limited usage away to good clients).
You need to look at your costs and the competition, then evaluate your pricing appropriately. This market space is so crowded, though, selling prints to participants is only marginally profitable even at its best. You'll eventually need to find additional ways to leverage your work and develop other revenue streams from it.
I looked at your website and your "About" page. I was trying to find out where you were located, and finally just extrapolated from the names of some of the galleries you've posted that you are in the VA area. You might want to mention the area you serve, somewhere on your site (well, maybe I just missed it). Another thing, personally I'm not sure I'd mention online that this is a sideline to my day job, that it's a part time gig (it's not for me). I think there's really no reason to mention that at this point, only if it comes up as a conflict if and when you have a request to shoot.
You didn't ask for feedback on your website and the way you are presenting yourself, I know, but these two things jumped out at me. You might disagree and that's fine. To each his own. I'm just mentioning what I'd do, personally.