What are the chances of winning the Army ROTC scholarship?

Yea man it sounds like you are on a great start. I had a very similar situation as well. Just make sure to keep the grades up, and if you get some spare time try practicing doing push-ups and sit-ups for 2 minutes and also running a 2-mile. The minimum for the 2-mile is 15:40 I believe, and I did around 60 push-ups. I don't remember how many sit-ups you need (I think I did around 80?) but Andrew might remember. About your chances at getting the scholarship... make sure you do good in the interviews, plus at some schools there aren't many cadets in the program(my ROTC battalion only has about 50 cadets, 8 of which are freshman). It sounds like you are in very good shape just keep at it. Oh, and I hope you like running....