I am a pretty good shot, I won the all-comers match at my gun club in Kansas the only time I entered (technically I didn't win but only because I fouled up my score card I did have the most hits), the only reason I mention that is she once beat me.
She was around 12 years old and we were shooting a target grade air rifle at empty .22 cases at about 25 feet. The rifle was capable of hitting every time if you did your part.
After I barely beat her a couple of times and was giving her a little good natured kidding, I noticed a determined look on her face. The next time we shot She hit ten out of ten and beat me. Of course then I had to take the kidding.