Win Your Day with a Michael Phelps Swim Spa by Master Spas

Team Master Spas

Master Spas is committed to supporting athletes in their efforts to balance life and athletics — whether they are pursuing a world title or want to maintain health.


Michael Phelps is one of the world's most successful athletes, earning 23 gold medals. Phelps first began working with Master Spas in 2010, after he had splashed onto the world swimming scene. Swimming in a swim spa "helped me develop me the best freestyle stroke I've had in my career," Phelps says. Now retired, the dad of three boys swims for mental and physical well-being.


A member of the "Fierce Five," Aly Raisman is a five-time gold medalist and world champion gymnast. Now, she works out for her mental and physical health. Encouraging people to make time for self care, Raisman shows how a swim spa by Master Spas can be used for exercise and meditation.

Mirinda Carfrae - 3 Time IRONMAN® world champion


Mirinda Carfrae, or Rinny as she's known, began competing in triathlon in her native Australia when she was a teenager. She has won the IRONMAN® World Championship title three times, proving to be a force in the sport. An H2X Challenger by Master Spas allows her to focus on swim technique and mimic open-water conditions.

Ben Hoffman - 7 Time IRONMAN® Champion


Based in Tucson, Arizona, Ben Hoffman won his first IRONMAN® race in 2010 at Lake Placid. He's gone on to win six more and has made the podium at the IRONMAN® World Championships. Hoffman trains in an H2X Challenger by Master Spas, which allows him to improve his swim technique and prioritize his recovery.


Master Spas brought together members of Team Master Spas for a special Zoom call as part of its annual dealer meeting. They offered a unique perspective sharing how they incorporate a swim spa into their training and family life. The athletes participating in the call included professional triathletes Ben Hoffman, Mirinda Carfrae, Tim O’Donnell and Meredith Kessler; professional runner Jordan Hasay; and influencers Taren Gesell and James Lawrence.

Meredith Kessler - 11 Time IRONMAN® Champion


Based in Columbus, Ohio, Meredith Kessler participated in her first IRONMAN® in 2000 and has not looked back. She loves to race and has gone on to complete more than 60 full-distance IRONMAN® events. An H2X Challenger helps her balance the training demands of professional and life as a mom, wife, and friend.

Tim O'Donnell 2nd Pace IRONMAN® World Champion


One of the world's most successful triathletes, Tim O'Donnell has finished on the podium more than 50 times. O'Donnell finished second at the 2019 IRONMAN® World Championship in Kona, HI and recorded the fastest American finish ever (7:59:40). Training in an H2X Challenger 15D, O'Donnell regularly incorporates aqua jogging and recovery swims into his schedule.

Jordan Hasay - Professional Runner


A California native, Jordan Hasay is the second fastest American woman to ever run the marathon. The professional runner, though, has struggled with injuries. Swimming and cross-training have helped her maintain fitness and improve strength. A swim spa by Master Spas allows her to train in warm water at home.

James Lawrence - The Iron Cowboy


James Lawrence wants to redefine impossible. Known for completing 50 IRONMAN®-distance efforts in 50 days across 50 states, Lawrence has broken several Guinness World Records. While he loves to challenge his limits, he’s a family man at heart. An H2X Challenger allows him to train at home and spend time with his wife and five children.

Triathlon Taren - Triathlete & Coach


Known for his YouTube channel and podcast, Triathlon Taren, Gesell is a competitive age-group triathlete who wants to help people cross the finish line strong and confident. A swim spa by Master Spas allows Gesell to train year-round in his "pain cave," a garage/studio on his property.

Master Spas is the official Supplier of USA Swimming and the Official Swim Spa of The IRONMAN® World Championship

Official Swim Spa

Master Spas is the official swim spa of USA Swimming and the IRONMAN® World Championships

Ben Hoffman swimming in an H2X Challenger series swim spa by master spas

About Master Spas Swim Spas

Master Spas is the world's largest swim spa manufacturer, Operating out of a state-of-the-art 33 acre manufacturing campus. Master Spas makes Michael Phelps Signature Swim Spas and H2X Fitness Swim Spas. The company is located in Fort Wayne, Indiana, which is 90 miles northeast of Indianapolis.

"I immediately fell in love with all our Challenger has to offer: easy access to swim training, the benefits of hydrotherapy and, of course, the perfect way for us to play and relax with our daughter Izzy."

— Tim O'Donnell

"Not only is it a vital part of my training and recovery arsenal yet it is an ample part of the day for my family. We relish in our family time, especially every evening, where we can relax, unwind, chat and laugh about the day."

— Meredith Kessler

"Having a daughter now, I'm less likely to drive to the pool to do a 30-minute easy swim. Being able to jump in the swim spa in my backyard and do an easy swim enhances my recovery."

— Mirinda Carfrae

At Master Spas, we make buying a hot tub or swim spa just as relaxing as using one.

Visit our showroom or schedule a video chat
See a hot tub or swim spa, select the perfect size.
A professional will evaluate your space
We can do this with a photo & dimensions or by visiting your backyard.
Schedule a day for installation
When you're ready, a hot tub or swim spa can be installed in one day.