All Out Sports League (AOSL) is a large East Bay youth sports organization based in Clayton offering seasonal camps and leagues in basketball, volleyball, cheer, football, track, soccer and baseball. Its basketball and volleyball camps are open to boys and girls ages 6-16 and focus on teaching fundamentals, hosted seasonally in Clayton and Antioch. The org serves over 3,000 children annually. Leagues run multi-week seasons alongside the camps.
The practical details
We list only what the camp itself publishes, and programs change — dates, prices, ages and availability can all move after we check. Confirm the details on the camp’s own website and contact All Out Sports League directly before you register or pay. Last checked August 2026.
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★★★★★Boyd RobinsonCasey and the staff at All Out Sports League run an outstanding program. They have a wonderful mix of competitiveness and instruction for the kids and provide a great outlet for the Adults. when it comes to youth and adult sports, GO ALL OUT!!
★★★★★Noelle GouldI have been participating in the Clayton co-ed softball league for the past four years. All Out Sports League was the first to bring co-ed softball to Clayton and I have had a wonderful experience. The league is very organized and has made it possible to have a fun and competitive sport for families. The kids come and watch us play and enjoy being out at the Clayton Community Park. My son has also been involved in the basketball league through AOSL. Our experience has been very positive. Every coach we have had has been a great role model and has taught him skills about the sport and life. Casey has continued to bring positive experiences for families to our community and I am thankful for AOSL.
★★★★★Claudia HernandezMy sons love this league! It's very organized, professional, and great communication! Best part of all is that boys love it. The kids have a great time.
★★★★★Lamont RobinsonMe and my family have been a fateful member of All Out Sports League for 6 years. Casey Copeland as played a very important part in my kids life and has touched the lives of so many youth in the Sf Bay Area. We have tried lots of sports programs and hands down this is the most organized, safest, affordable, family atmosphere sports programs in the Bay Area.
★★★★★Kerry SeastrandThis league is a huge gift to our community. Casey Copeland has done an amazing job bringing, not only a Class A sports program to Clayton, but he has also blessed our community with a respectable, ethical organization. The gym is constantly buzzing with kids doing things they SHOULD be doing - challenging their skills, experiencing sports, making friends! My children have all benefitted from the AOS experience. My eldest travels with the Blaze AAU team and has grown exponentially in his skills, and benefitted from great mentoring from his coaches. Thanks AOS!