The Team

Shannon Grady, Founder and CEO, M.S. Exercise Physiologist, has over 30 years experience as an athlete and over 15 as a physiologist, sports performance expert, and coach. She has competed professionally for the FILA Discovery USA and PowerBar Team Elite, and has 4 Top 10 World Championship finishes representing Team USA triathlon. Prior to founding GO! Athletics, Shannon worked as an Exercise Physiologist for the United States Olympic Committee. Over the last 15 years, she’s worked with elite athletes and teams, including U of Florida, U of Tennessee, Villanova University, Duke University, UCF, WUSA, and MLL, developing an algorithm and methodology based on data samples from 90,000 athletes.

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Mike specializes in working with innovative coaches and motivated athletes to reach the next level. Using current Best Practices and technology, Mike uses the lessons learned from working with coaches and athletes at the Olympic Training Center to improve the performance of athletes at any level. He started working with U.S. National Team coaches in 1989, combining coaching experience and sport science background to optimize training, biomechanics and athlete evaluation to improve performance.
Mike completed post-graduate research on elite athlete performance at Vrije Universiteit Brussel, Deutsche Sporthochschule Koln and International Olympic Training Centers. Earned his bachelor’s and master’s degrees from San Diego State University.
Joined the U.S. Olympic Committee as a Sports Performance consultant in 1994 and later promoted to Senior Sports Physiologist. He worked with elite athletes from wide variety of sports, specializing in endurance sports, from both summer and winter sports training for National and World competitions, including the Olympic Games and Pan American Games. Served as a member of the Olympic Team Staff for numerous Olympic Games to help support Team USA and retired from the USOC after 20 years of service.
Before working with the Olympic Committee, he served as Head Men’s Rowing Coach for the University of California, San Diego from 1985-93. Prior to joining UCSD, Mike worked for the Naval Health Research Center as a research physiologist from 1991-94. In that position, he supported projects requested by the Navy to improve combat performance and survivability of military personnel.
Currently, Mike continues to provide athlete performance services and coach education to National Team Programs. Provides consulting services with college/club rowing programs interested in sustained competitive performance. Teaches in the graduate Coaching Sport Leadership program at Drexel University.

Selina Weller, Head Exercise Physiologist. Selina has been part of the GO! Athletics team since 2002. She has worked directly with Shannon for over 10 years and performs physiological testing and data application primarily with our South Florida clients but also manages System Based Training implementation for all regions. Selina has also owns a massage therapy practice in South Florida working with athletes of all levels, from recreational and high school runners, cyclists, swimmers, golfers, soccer and tennis players, to ATP tour professionals, NHL, NFL, MLS professionals as well as Olympians such as Dara Torres.

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Michael graduated with an M.S. in Exercise and Sports Science from the University of Florida. For the past 15 years, Michael Coffey has been a strength & conditioning specialist, and an expert in the science of movement and speed. His athletes routinely find success at the highest levels, such as Gold Medals at the 2012 Olympic Games, and performing in Super Bowl Championships. As a strength and conditioning coach, his approach to high level performance has been an integral part of 8 NCAA Championship Teams at Stanford University. His insatiable curiosity to discover the cutting edge has led him to incorporate the fields of neuroplasticity, oxygen/altitude training, exercise endocrinology and mindfulness to his already vast training skill set. His expertise is delivered using a philosophy he calls The Resilience Factor- “Get tough and Recover First”. His expertise in developing what he calls Authentic Fitness, combined with his ability to connect and communicate, make him a master at sustainably maximizing athletic potential.

Todd is a Ph.D. candidate in Exercise Physiology at Michigan State University finalizing his dissertation on performance in triathletes. During his time at MSU, Todd served as the Exercise Physiology Research Lab Coordinator and has worked with athletes of all levels including MSU and University of Michigan club triathletes, MSU varsity athletes, and IndyCar drivers. Todd played baseball collegiately and has since transitioned to distance running and triathlon. Todd is a current member of the Every Man Jack triathlon team and is a two-time national champion at the USA Triathlon Olympic Distance Age Group National Championship. Todd has also run the Boston Marathon multiple times and owns a marathon PR of 2:28:36.

Christopher McElroy rowed for St. Joseph’s Prep and Northeastern University. He has won multiple National Championships as a lightweight sculler and continues to race competitively. Coach Mac has over 25 years of coaching experience working with scholastic and collegiate programs, as well as the United States and Puerto Rico National Teams (junior, u23 and senior). He has coached at St. Joseph’s Prep, St. Joseph’s University’s, Mount St. Joseph Academy, William Penn Charter and is currently coaching at Springside Chestnut Hill Academy. During the early ’90s, he resurrected the Penn Athletic Club Junior Rowing program. He has also coached at Penn A. C., Crescent Boat Club and Malta Boat Club between 1991 and 2014, and is currently coaching at Undine Barge Club. Internationally, he has coached 4 crews to World Championships between 2003 and 2015, as well as a single at the Americas Olympic Qualification Regatta in 2016.

Andrew Wiener graduated from Bucknell University in 2017 and competed on the varsity men’s track and field team. While interning with GO! Athletics in 2016, Andrew learned about Shannon’s’ methodologies and witnessed firsthand the athletic improvements by athletes and teams across all levels of sports. He currently serves as an Assistant with GO! Athletics, providing administrative support, speed & agility training, and physiological testing to teams and athletes across the East Coast. Additionally, Andrew serves as a high school track coach at The Haverford School.

Michael Chauner has been involved in cycling for 16 years as an athlete, coach and entrepreneur. He began racing at age 14 and steadily improved through the junior ranks, collecting state and national championship medals, earning a spot on the Junior National Team in 2004 and competing with team USA in Belgium, France and Holland. He helped his PA Team decisively win the National Team Pursuit Championship and qualify for the 2004 Junior World Track Championships in Los Angeles. Michael is a strong believer in combining a cycling career with higher education. He graduated from Bucknell University in 2008 with a degree in psychology and collected 11 collegiate cycling victories throughout his academic career making him the winningest Eastern Collegiate Cycling Conference rider during 2004 through 2008. Mike balances his own racing with his coaching business, Vitesse Sport Performance, where he focuses on helping individual athletes achieve their personal goals.

Andrew Beggs has been a USA Swimming coach for the past 13 years. Andrew has coached in a variety of positions in both Track and Field and Swimming. His positions have included High School, Collegiate, Club and Masters teams, but he has spent most of his time exclusively working with USA Swimming Age Group Clubs developing age group swimmers to national level prominence. Andrew has coached National Record Holders, Olympic Trials Qualifiers and Olympic Trials Finalists, but he is most grateful for his consistency in improving athletes from all experience and ability levels. He was awarded the CSCAA Jean Freeman Scholarship in 2013 as the Associate Coach of Swarthmore College which is given to 6 NCAA assistant coaches: one male and one female in each division. He served as the Director of Competitive Aquatics and Head Coach for Lionville Community YMCA from 2013 – 2016 where his team accelerated from seventeenth in the state to first in just three years. This success was in large part due to the application and methodology derived from system-based training combined with his distinguished understanding and ability to teach modern stroke technique. Andrew attended Rutgers University and was a member of the Men’s Track and Field team from 2004 – 2006. He holds a B.A. in Applied Mathematics from Eastern University. Andrew hails from Brookhaven, Pennsylvania but currently resides in Columbus, Georgia and is the Head Coach of the Columbus Aquatic Club.

Deb Hellman is in her 11th year as the Head Coach for the St. Mary’s High School cross-country and track programs, where athletes under her coaching guidance have gone on to run for nationally-ranked collegiate XC and Track programs (Vanderbilt, Villanova, Colorado School of Mines, Gonzaga and Creighton). An inherently optimistic and motivating person, her greatest satisfaction lies in helping others reach their athletic potential. Thus, when one of her daughters ran for Villanova University, Deb became intrigued with GO! Athletics Physiological Profile Testing and System Based Training™. Her approach to coaching follows the metabolic developmental application of System Based Training, allowing athletes to reach individual success, reduce injuries, and improve self-confidence. She is excited to be a resource for GO! Athletics and SBT in Colorado, and looks forward to marketing and supporting the program among the active Colorado athletes. Deb is an avid recreational runner and can often be found running her favorite trails and parks throughout Colorado.

Mark Morrison is an exercise physiologist and owner at Invigor8 coaching based in Houston, Texas. Invigor8 coaching brings the latest in sports science, combined with leading technology and coaching expertise to help endurance athletes train smarter and improve performance through data driven training programs incorporating individual physiological profile, metabolic and performance testing. He also works with the weight loss population by conducting resting metabolic rate testing, and health and life coaching.
He holds a masters degree in exercise science from the University of Houston where he conducted research in exercise immunology and effect of age using trained cyclists. He is an author and researcher in the field of exercise physiology with publications in professional journals.
Mark has been a guest lecturer at universities and professional conference’s on topics related to human performance and is active in the local community, speaking on health, exercise, and performance to running clubs, triathlon clubs, corporate health programs, health fairs, and weight loss groups. He has lectured in exercise testing for special populations and coached tennis, strength training, soccer, spinning, aerobics and swimming while at the University of Houston.
He ran the human performance lab as senior exercise physiologist at Houston Methodist Sports Medicine for 6 years. He also worked as an exercise physiologist in Scotland for four years working with the sedentary population and has almost 20 years combined experience as a personal trainer, athlete, health and life coach, exercise physiologist and has competed in marathons, half marathons, tough mudders, and triathlons.

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