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We Train Aquatic Athletes

Dryland and swim technique coaching for athletes at every level.
Train with us in Brea, Irvine, or online.

World Championship coaches
1,000+ athletes trained
5.0 from 142 Google reviews
NCAA & National Champions

What we offer

Three Ways to Train With ASP

In-Person

In-Person

Train with us in Brea & Irvine, CaliforniaLearn more

Results that speak for themselves

Proof, not promises

23.5

50m Freestyle, long course. Fast, but not fast enough

The turning point

Calvyn Justus, a South African Olympian, joined ASP.

We found what was holding him back and built a program to fix it.

10 months later

21.9

A 1.6-second drop, and a spot on the Commonwealth Games team.

Now it's your turn

Your fastest swim is next

ASP Athletes

Chosen by Champions

  • Olympic Gold Medalists
  • World Championship Finalists
  • Olympic Games Qualifiers
  • European Championship Qualifiers
  • National Record Holders
  • NCAA Champions
  • Masters World Championship Medalists
  • Masters World Records
  • Division I & II Scholarships
  • Olympic Trial cuts, Sectional cuts & AAAA standards

our coaches

A Staff That Understands Aquatic Athletes

World Championship qualifiers. Seven former NCAA athletes. A world top-100 time in the 200m breaststroke. Masters World Record holders. Methods backed by published swim-strength research.

What athletes say

Loved by athletes and parents

5.0

Rated 5.0 from 142 Google reviews

Tiffany Kim
Tiffany Kim
on Google

ASP is one of THE best training programs there is for swimmers. These past few years, ASP has helped me build the strength and power to achieve countless best times, including my futures cuts and now almost winter jrs. Every day I go to the train, the environment and coaches are always beyond supportive, and every workout is tailored to my needs as a mid distance freestyler and butterflyer. I can’t wait to see what more is in store, and there is no doubt this program has helped me become the better swimmer I am today

Tyryn Empremsilapa
Tyryn Empremsilapa
on Google

I first started training at ASP with Sean back in March of this year. I had certain goals I wanted to achieve during both my senior year high school season and during my last summer long course season before heading to college. Because of covid, the weight room at my club team was closed so I didn't have access to lift weights with a trainer. What I love about ASP is not only the amazing environment and lovely staff, but also the options we can choose for our workouts and the personalized workouts that best suits our own needs. My club team had access to the weight room shortly after I started training with Sean, but I continued to train with him on my own time. I was confident in his training, and I definitely felt stronger and more confident in myself in and out of the pool from his workouts. The amount of motivation I have gained from training at ASP is surreal, and going there was always something I looked forward to throughout every week. Since 2019, I haven't been able to go best times at meets. With the help of Sean and two other coaches (Courtney and Andrew), I was able to go 5 best times over this past summer. I highly recommend athletes to go and try out some workouts with Sean. Not only is he a great coach, but he's a great mentor and someone who has a great understanding in athletics.

Joseph Patrick
Joseph Patrick
on Google

Genuinely could never recommend this place enough. I’m a remote athlete out of Ohio, so I haven’t personally been to this gym. However every single person at ASP has an incredible passion and work ethic for what they do. What they are doing to their athletes, as well as the swimming community as a whole is nothing short of incredible. If you’re not following aquatic sports performance, their athletes, their stories, and their information, frankly you’re falling behind. ASP is the future. Pursue Potential.

Michael Langenfeld
Michael Langenfeld
on Google

I’ve been training for three months now with Aquatic Sports Performance as an “online athlete,” and the online dryland program is simply brilliant: perfectly tailored gym sessions that directly complement the water training — improving body position, feel for the water, strength, and especially mobility. Even as an online athlete, the support is outstanding. Sean and his team impress with incredible expertise and a great, friendly attitude. Questions are answered thoroughly, and you’re perfectly supported in your daily training routine. Simply absolutely recommendable. Thank you so much for that!

Natalie Perez
Natalie Perez
on Google· a year ago

Coach Sean and his team are phenomenal! We appreciate how methodical he is in his training for his athletes. Our daughter enjoys working out at ASP because of the coaches, the environment, and striving to attain the goals she’s set for herself in her swimming career. She feels stronger and continues to see improvement in the gym as well as in the pool. UPDATE: Our daughter has definitely gotten stronger physically. She continues to drop quite a substantial amount of time at each meet. Coach Sean and his trainers are exceptional and truly care about their athletes! 2nd UPDATE: After a shoulder injury in August 2024 and four months of physical therapy, our daughter returned to training with ASP in January. She’s been excited to work again with Coach Sean, Coach Sid, and the team. Coach Sean has carefully tailored her sessions to support her recovery, helping her regain strength and mobility. She has been able to drop time again in her events which has been super encouraging!

Michael P
Michael P
on Google· 7 months ago

My son has truly enjoyed working out at ASP. He always felt welcomed and supported. He has been training with ASP for about 4 months and I can already see an improvement in his performance in swimming. Definitely a great opportunity that I would recommend to any others looking to improve their swimmer's capabilities. My son feels ASP is without a doubt a gym that could help a swimmer achieve his or her goals.

Mayra Daza
Mayra Daza
on Google· a year ago

My daughter joined ASP last year. Her training has been extremely fulfilling. I could not ask for better coaches, from meeting Sid and Sean, everyone here is very helpful, and patient will all their athletes. My daughter has developed so much strength physically and mentally. It is such a great environment for her! Thank you for all your doing with these athletes!

Jack Kay
Jack Kay
on Google· a year ago

Aquatic Sports Performance has been an incredible place for my kids. Since joining, they have become not only physically stronger but also more confident and mentally resilient. Coaches Sean and Sid, along with their amazing team, are truly dedicated professionals. They are knowledgeable, supportive, and genuinely care about helping every athlete reach their goals. The positive environment they've created has made a huge difference in my children’s athletic journey, and I’m so grateful for the growth we’ve seen. Highly recommend to any swimmer looking to take their performance to the next level!

Anna Baker
Anna Baker
on Google

Knowledgeable, friendly, dedicated trainers is what you will find at ASP. I truly appreciate the interest the trainers take in my daughter’s training development in each session and help her build strength, increase endurance, and improve recovery in the water. She has consistent improvement in her strokes times but more importantly, she has more confidence in every aspect of swim both in and out of the water that I can attribute to her trainers and swim coaches. Thank you.

Carrie
Carrie
on Google

My daughter started at ASP last year and it has been a great experience. The trainers tailor the workouts to her age and ability and continually support her. With the progress she has been making my son just joined and even though he’s a baseball athlete they have a full regimen for all athletes not just aquatics. It’s been great for both of my kids.

Wesley Wu
Wesley Wu
on Google

ASP helped me a lot from since i started. I've noticed myself going a lot faster and my strokes are getting a lot stronger. The coaches are very helpful and pay lots of attention to everyone and they make sure I'm doing each set correctly with good form. Overall, the equipment are top notch, the coaches are professional, they're close with the students and the music always hypes me up!!

Vivi Kalayedjian
Vivi Kalayedjian
on Google

Our experience at Aquatic Sports Performance has been amazing. Both of my kids have been training here for almost two years, and the improvement we’ve seen in their strength, mobility, and overall athletic performance has been incredible. This facility truly specializes in training aquatic athletes — helping swimmers become faster, stronger, and more resilient in the water. The coaching staff is knowledgeable, supportive, and committed to helping each swimmer reach their full potential. If you have a swimmer who is serious about improving their swimming career, I highly recommend Aquatic Sports Performance. It’s the perfect place for athletes who want to take their performance to the next level.

Idris Vohra
Idris Vohra
on Google

I started ASP in the last week of December (2024) and have seen significant improvements in my core strength and mobility in less than 4 months. During the evaluation what struck me was that Sean spent time identifying the core areas that had to be worked upon to make me a stronger/faster swimmer, and those efficiency areas were spot on. Focusing on mobility has greatly assisted me in areas where I’ve had opportunities to improve, and this wouldn’t have been possible without Sean, in particular, taking the time to understand these opportunities. The entire program has a solid structure with using technology to log workouts and then taking notes, which has also been a big difference from past programs that I was a part of. Thank you ASP, you rock!

Manoj Joshi
Manoj Joshi
on Google

ASP trainers/coaches make the gym environment fun, while also holding athletes accountable. The coaches are very motivating and they continue to push limits every session. They are very understanding and very effective with communication. 10/10, would recommend!

Anthony Li
Anthony Li
on Google

Great coaching and great staff. Helped me improve greatly in my mobility and strength!

Scott Matsumoto
Scott Matsumoto
on Google

Great staff and coaching helped me improve me drop time and focus on my mobility!

Nikhil Pai
Nikhil Pai
on Google

Because of Sean and Sid Kao and their training regiment, I have felt comfortable and powerful in the water while also keeping the technique that I learned. I am recommending ASP to those that want a competitive edge in the sport of swimming.

Sonit Joshi
Sonit Joshi
on Google

The coaches are very motivating and they create an amazing environment in the gym. They have helped me improve a lot both with my mental and physical strength. ASP is well - structured and the coaches will always hold the athlete accountable. 10/10 would recommend!

Matthew Ko
Matthew Ko
on Google

I improved a lot after a few months here. Love the environment, made me feel very welcome as a swimmer.

Ayla Kailiponi
Ayla Kailiponi
on Google

Aquatics Sport Performance has helped me improve so much on my times! It has a great environment that motivates me to work harder.

Will Chen
Will Chen
on Google

great, i went faster in pool after sean gave me his master knowledge. 10/10 would recomend and im coming back

RubyRiver
RubyRiver
on Google

ASP is awesome! I’ve been coming here for a few months and have improved already. Coaches are very nice and helpful. Review by Sophia Zhu

SYLVIA LIN
SYLVIA LIN
on Google

I can swim faster now thanks to asp.

Darioush Nikravan
Darioush Nikravan
on Google

Amazing gym, amazing staff. I bring my daughter here to train for swimming and she loves it. The owners are super nice and very motivating. They need to open more locations.

We Train Aquatic Athletes

Visit us

Find an ASP Gym Near You

ASP Brea

Address
396 Cliffwood Park St, Brea, CA 92821
Get directions

ASP Irvine

Address
Rebel Strength, 1370 Reynolds Ave #100, Irvine, CA 92614
Get directions

Trusted worldwide

By the numbers

1,000+
Athletes trained
20,000+
Sessions coached
5.0
Average Google review
10
Expert coaches

Ready to Pursue your Potential?

Book your free session in Brea or Irvine, or train online from anywhere in the world.