Transcript for Reece Whitley, the 15-Year-Old Swimming Champion
You know at 6'8" he's quite literally the next big thing in breaststroke making waves in swimming and beyond. Those record-setting junior national swims raising the big question, will we see Reece Whitley on the U.S. Olympic team? Here's ABC's Lindsey Davis. No one is going to catch lane number five, Reece Whitley. Reporter: He's a 6'8" swimming sensation, seen here powering so victory at 66 national championships. At just 15 years old Reece Whitley is being called the next Michael Phelps, recently named "Sports illustrated" kids, sportskid of the year. Whitley attributes his success now to his failure at summer camp when he was just 7. I failed. Water test, the first time I did it. I told my mom that night and she enrolled me in lesson the next week and this is what happened. Reporter: What happened is Whitley now holds five national age group records. He's on the junior world championship team and has fast enough times to have already qualified for the 2016 olympic trials. Take your mark, go. Reporter: But just as much as Hess breaking records, he's also breaking barriers. I'm going to need to play a key role in kind of integrating swimming and inner city communities a lot more. Reporter: 16 punishing hours of training a week, before and after school, and on weekends. In the hopes of earning a spot on the U.S. Olympic swim team. Go! Is this a unique experience, an opportunity for you to be able to coach Reece? Yeah. Absolutely. I haven't had swimmers at his level and especially at his level at age 15. When you hear that people kind of compare you with the best, the most elite of swimmers, how do you take that? You know, it means a lot, but at the end of the day you can't really get caught up in that stuff because it throws your mind off. Reporter: He is as humble as he is a hulking figure and kind enough to give an olympic hopeless like me enough of a head start to experience the thrill of victory that's now old hat for him. Who won? I think so Lindsay got it. Reporter: For "Nightline," I'm Lindsey Davis, in New York.
This transcript has been automatically generated and may not be 100% accurate.