Multisport Mastery (MSM), led by Elizabeth Waterstraat, and Jennifer Harrison Coaching (JHC), led by Jennifer Harrison, are two multisport coaching services in the Chicagoland area who have joined forces to create one strong, inclusive team.

Our coaches specialize in creating comprehensive performance plans for multisport athletes of all ages, abilities, and experience levels to bring balance and joy to their training and racing, with a focus on developing complete, well-balanced athletes and helping those athletes achieve their goals.

With over 85 years in combined coaching experience, the coaches at MSM and JHC have coached endurance athletes of all ages and abilities from around the world, from those looking to complete their first multisport event, to countless overall champions, National Champions, World Champions, and an Olympic Bronze medal triathlete.

Elizabeth Waterstraat

Elizabeth Waterstraat is the founder of Multisport Mastery, Inc. and a certified USA Triathlon Level II & Endurance Coach, Training Peaks Certified Coach, Lydiard Foundation Level II Coach, RRCA Certified Coach, USMS/ASCA Level 3 Swim Coach and USMS Adult Learn to Swim Coach with nearly 20 years of competitive and coaching multisport experience.  Since the inception of Multisport Mastery in 2007, Elizabeth has worked with hundreds of athletes, beginner to advanced, all ages, from all around the world. Through a detailed approach aiming to develop both body and mind, she has developed athletes from amateur to elite, beginner to world champion. Elizabeth provides each athlete with a customized training plan supplemented with the support, education and motivation to bring out each athlete’s very best. As a full-time business owner, well-accomplished multisport athlete and parent of three children, Elizabeth understands the unique challenges of those blending their athletic goals with real life demands.  Whether you’re looking to finish your first Ironman or stand atop the world championship podium, Coach Elizabeth is ready to engage, educate and empower you to be your very best.

Jennifer Harrison

Jennifer has been coaching triathletes for nearly 25 years and is the owner of JHC Coaching. Jennifer is USAT Certified, Training Peaks Level 2 Certified and RRCA Certified. Jennifer has worked with a wide variety of triathletes including: first timers, the University of Illinois Triathlon team, National Champions, World Championship athletes, high school runners who signed with D1 Universities as well as an Olympic Para-Triathlete bronze medalist in RIO in 2016. Over these years, she has worked with thousands of athletes to help them navigate their training and thoroughly prepare them to race up to their potential. Jennifer continues to be an advocate for small business owners and mentoring coaches as they start up and develop their own coaching businesses. Jennifer is a huge supporter of local races and giving back to her community.

Jennifer is married, a mom of college aged twins and continues to race Triathlons in her free time. Jennifer has raced over 200 triathlons and continues to find joy in her racing endeavors.

Amanda Wendorff

A life-long athlete who first started coaching runners and swimmers in 2002, Amanda Wendorff is now full-time USAT and Ironman certified multisport coach. Since Amanda joined Multisport Mastery, she has guided multiple athletes to World Championship and Boston Marathon qualifications, age group podiums, and personal records in all distances of triathlon and running. Also an attorney who formerly worked as a corporate litigator in Chicago, Amanda understands the complexities of juggling busy schedules and training, and works with each athlete to develop a program that will allow top performance while performing well in other parts of life. Amanda enjoys working with athletes in all stages in their athletic career, from rookies to those looking to stand atop the podium.

In addition to coaching, Amanda is an accomplished triathlete who has raced a professional since 2016, with multiple Top 3 professional finishes at the Ironman and 70.3 distances. She has completed 10 Ironman distance races, raced three times at the Ironman Worlds in Kona, was an age group World Champion at the 70.3 World Championships in 2014, and finished 3rd in her age group in Kona in 2015.

Jenny Hayes

I work with triathletes, runners, and multi-sport athletes of all ages, backgrounds, and abilities from all over the world. I am committed to getting to know my athletes and look at each one holistically - training, racing, nutrition, mindset, lifestyle - so I am able to create customized and individual training plans to set them up to not only meet and exceed their goals, but be healthy, happy, and have fun in the process! No two athletes are the same, so I believe training plans shouldn’t “look” the same, and are most impactful with plenty of thought, creativity, and knowledge behind each one. That is why I find having open lines of communication and feedback are SO important, and something I value as a coach.

Through my USA Triathlon Level 1 & 2 Coaching Certifications, Institute for Integrative Nutrition Health Coaching Certification, 200 Hour Yoga Teacher Training Certification, and attending Spirit Junkie Masterclass Level 1 & 2 with Gabrielle Bernstein, I have a strong and diverse educational background to support each and every one of you. I continue to competitively race - and have raced 10+ Ironman, 20+ Ironman 70.3 (including Ironman 70.3 World Championships), and countless olympic & sprint distance triathlons + run events all over the world.

Kristan Huenink

Kristan Huenink has been exploring the Chicago in her running shoes for more than a decade and coaching runners from beginners to marathoners nearly as long. Kristan is a USAT-certified Level I Triathlon Coach, Slowtwitch-certified Swim Coach, and RRCA-certified Run Coach. She works with athletes of all levels to discover their athletic potential with a focus on developing the whole athlete, including mental toughness, tactical racing, nutrition, strength and endurance. She is committed to ongoing education, both as a coach and an athlete, in order to provide optimal support for the growth and development of her athletes. As an athlete, Kristan has completed countless road races from 5K to 26.2 (including 30 marathons to-date), open water swim races and triathlons of all distances (including 5 Ironman-distance races to-date), repeatedly qualifying for USAT Age-Group Nationals, earning Ironman All-World Athlete Bronze status and competing at the top of her age group at the Sprint distance. 

Sarah Jarvis

Born and raised in a sporty family in Germany, Sarah Jarvis got into triathlon at the age of 16 and immediately fell in love with the sport. She successfully worked her way through the German junior ranks in the short distances and became certified as a youth triathlon mentor while in high school in order to share her passion with others. In her early twenties, she moved to the US where she established herself as the top Utah age grouper for many years. As a wife and mother of two boys, Sarah placed on the podium in several 70.3 World Championships and decided to take her pro card in 2014 to challenge herself further and experience the sport at the highest level. After two successful decades in triathlon, she is currently facing a significant change with her recent diagnosis of a severe auto immune disease called rheumatoid arthritis. However, her passion for and dedication to triathlon is stronger than ever and Sarah has really enjoyed bringing people into the sport and mentoring them for years before officially starting as a coach with Multisport Mastery in 2016. Sharing her extensive knowledge and love for this sport with others is what brings her true joy. 

Taryn Fimiani

A lifelong swimmer with an endurance running background, Taryn jumped into triathlon over a decade ago while cross-training for a marathon. After fostering a quick love for the sport, she has since completed numerous races at each distance to include podium finishes in the Olympic and 70.3 distances. Today, Taryn is an experienced USA Triathlon Level 1 coach, USMS Level I and II certified Masters coach, and dietetics student with a specific interest in sports nutrition and weight management. Over the years she has coached all levels of multisport athletes, pool and ocean swimmers, and endurance runners. She also serves as an organizer and mentor in a Virginia triathlon club which specializes in supporting women new to the sport. As a coach, student, and endurance athlete with 20 years as a military spouse, Taryn understands different ways of balancing training and racing goals alongside the dynamics of professional and personal life. She believes that triathlon has enriched her life in myriad ways. Helping athletes experience that same source of joy while growing along their individual paths in the sport is what motivates her as a coach.