StL Athletic Development 1550 Ocello Drive, Fenton, MO 63026

"Leo is an extraordinarily dedicated and extremely knowledgeable trainer, who is truly invested in his clients overall health, fitness, and well-being. His program has transformed my daughter into a complete stud!"

"I can’t recommend Leo Deering and his team highly enough. My son and daughter have been working out with STL Athletic Development since 2013. In my opinion what they have learned about goal-setting, hard work, strength and conditioning training, and nutrition from Leo is as important (or more!) as anything they have learned in school—it will stay with them forever. They are stronger, faster, healthier and more confident—on the field or court and in their daily lives. His facility and equipment are fantastic. What I have always appreciated most about Leo is that he genuinely cares about and takes a personal interest in the happiness and success of each client. He won’t coddle anyone (developing their mental strength is one of his goals) but he will tailor his approach and expectations to fit each individual. Leo expects a lot from his clients but even more from himself. Put in the effort and he will go “all in” for you—and you’ll see the results."

"Leo Deering is the best Strength and Agility Trainer in the St. Louis area, hands down! Leo and his Staff are all knowledgeable regarding all aspects of developing athletes of all ages. My three children (ages 16,14,14) have been training with him for going on three years. My daughter now plays on a National level fast pitch softball team and has been a Varsity starter for all three years. She also has been First team All-District, First team-All Conference' First team All-Region and All-Conference MVP. My boys both play AAA/Major baseball and Varsity Hockey their Freshmen year. Without STL Athletic Development teaching them how to train they wouldn't be anywhere near the athletes that they are today. If your athletes are wanting to get Bigger-Faster-Stronger-Safer, this is the place to put the work in!!!!!"

"Can’t say enough good things about Coach Leo and his staff. They are knowledgeable and professional as well as personable. Have seen great improvements in my two sons. If you want to improve your child’s or your physical abilities, this is the place to be."

"Leo and his staff are incredible. I highly recommend StL Athletic Development to any young athlete looking to get faster, quicker, stronger, and safer."