Multisport Mastery is a triathlon and endurance coaching team based in Naperville, in Chicago’s western suburbs. Since 2007 we’ve coached athletes from their first sprint triathlon to the IRONMAN World Championship in Kona, in person around Chicago and online wherever you train.
Triathlon and Ironman Coaching in Naperville and Chicago
Who coaches at Multisport Mastery?
Founder and head coach Elizabeth Waterstraat leads a team of four coaches. She is a USA Triathlon Level III Coach with 20 years of coaching experience and 26 years as an endurance athlete, a five-time Kona qualifier, five-time IRONMAN World Championship finisher and 12-time National Champion. She has coached athletes from beginners to professionals and from first-time finishers to world champions. Meet our coaches.
What does triathlon coaching with you include?
- Personalized training in TrainingPeaks, built around your goals, history and schedule
- Daily communication and post-workout feedback
- Detailed pre-race preparation and post-race analysis
- Education on pacing, nutrition, mental skills, equipment and recovery
Which races do your Chicago-area athletes train for?
Everything from local sprint triathlons like the Naperville Sprint Triathlon to USA Triathlon Nationals, IRONMAN 70.3 and full IRONMAN races, plus marathons, ultras and gravel events.
Do you only coach athletes in the Chicago area?
No. Most of our coaching happens through TrainingPeaks and daily communication, so we work with athletes around the world. In-person coaching options include swim lessons, summer open water swims, summer camps on the IRONMAN Wisconsin course, our annual fall Swimcation, and more. Read athlete stories.
Where can I train with you in person around Naperville?
Most of our coaching happens remotely, but there are plenty of ways to train with us face to face in Chicago’s western suburbs:
- Masters swimming. Coach Liz coaches Naperville Waves, a U.S. Masters Swimming club, with lanes organized by speed.
- Adult swim lessons for new swimmers, first-time triathletes and anyone chasing a faster 100.
- Bike fitting and bike repair in Naperville, including race-ready tune-ups and packing your bike for travel.
- Summer open water swims and summer camps on the IRONMAN Wisconsin course.
- Swimvember every November, plus our Swimcation in Naples, Florida.
See swim coaching in Naperville and bike fitting and repair.
Do you coach masters athletes?
Yes. Many of our athletes are in their 40s, 50s and 60s, and Coach Liz still races as a masters athlete herself, with an age group podium at the 2025 IRONMAN World Championship. Age changes how we approach recovery, load and progression. It doesn’t change your capacity to improve.
Where should Chicago-area triathletes start reading?
Chicago seasons shape training: long indoor winters, cold early-season open water and hot summer races. Start here:
What do your athletes say?
“I’m a recently retired guy who decided to jump headfirst into an Ironman at age 58. It was my first ever triathlon… I not only had two big successful races under her guidance, I also learned a lot about endurance training.”
Dale, Illinois
How do I get started?
Every coaching relationship starts with a fit call. We’ll talk about your goals, your training history and how training fits into the rest of your life.
