About Us

Founded in 2022 by Holly Benner and Michael Seiler, Metta Endurance coaches work with endurance athletes who are looking for more than just a training plan.

We believe that a coach should help you develop your mind, body, and soul to help you achieve your personal goals and maintain a balanced life.

Holly Benner

Co-founder & Coach

Holly Benner is a peak performance geek, passionate about coaching others to achieve goals through transformative experiences. She is a former professional triathlete, elite swimmer, rower, runner, and Industrial-Organizational Psychologist. Under her guidance, Holly’s athletes have recorded personal best performances, podiums, and victories in a variety of cycling, triathlon, and running events. 

Holly’s coaching methodology focuses on maintaining happy, healthy, and hungry athletes through a holistic mind, body, and soul approach: The Metta Endurance Method.

Holly is also a mentor for the World Triathlon Organization, where she engages with triathlon coaches in developing countries. In her free time, Holly enjoys spending time with her husband Matt and their two cats in Macungie, PA.

Michael Seiler

Co-founder & Coach

Michael grew up playing soccer. He earned All-Conference and 2X Team MVP honors at Centre College before turning his focus to cycling and running. His primary cycling disciplines are road and cyclocross in addition to endurance gravel events.

He is an Ironman (2X) and has raced over 35 marathon and ultra-running events including Boston (2X), New York, and Chicago.

Michael is a Level 2 USA Cycling certified coach and has been coaching athletes at the junior and elite levels as well as age-groupers for the past 15 years.

Michael’s approach to coaching is working with the whole athlete – Mind. Body. Soul. – to help them achieve their goals. This is the foundation of The Metta Method.

Michael has a professional bike fitting certification from the Serotta International Cycling Institute. He brings his passion for getting the most out of training and racing by ensuring the body and machine are fit properly to increase efficiency, power and comfort. His bike fitting company is called Stage22 Performance.

Michael is married to Marcia Seiler and they have two daughters and a rescue Lab named Willett.