I have played for about 4 years and I was looking to enter a tournament or two this summer just to see how I am compared to people that aren't my local friends. So I signed up for the USTA junior membership. In the process of finding the tournament on the USTA website I searched "Boys' singles 16" because I am 16 years old (17 in july). I found a tournament fairly close to me that I would like to enter, but when I went to sign up for the tournament online the only event it available was what was labeled "Boys' singles 18". Does that mean I can still sign up and play? Will I be at a disadvantage being it my first tournament playing against 18 yr olds?