Elizabeth Waterstraat is the founder of Multisport Mastery, Inc. and a certified USA Triathlon Level II Coach. She brings more than 20 years of competitive and coaching experience across triathlon and endurance sport.

Since founding Multisport Mastery in 2007, Elizabeth has coached countless athletes worldwide, spanning beginner through elite levels. Her coaching is grounded in a systematic, athlete-centered approach focused on long-term development, performance sustainability, and enjoyment of sport. Athletes under her guidance have progressed from first-time competitors to national and world class performers.

As a full-time coach, business owner, accomplished multisport athlete, and parent, Elizabeth understands the practical challenges of balancing high-level training with professional and personal responsibilities. She partners closely with her athletes to design individualized training that integrates performance goals with real-world demands, emphasizing education, communication, and consistency.