• UESCA Running Coach
• UESCA Endurance Nutrition Coach

• Running (marathon or shorter)
• Ultrarunning

• Beginner

• Sports Nutrition

1-3 years

I'm Mike Brennan, founder of One Run Coaching. I coach adult recreational runners who want structure and accountability without being locked into a rigid program. My athletes range from brand-new runners to ultramarathoners, and what they have in common is that running is theirs — something they protect in a busy life.

My approach is built around the One Run Method: Plan, Run, Reflect, Adjust. I use RPE-based training so athletes learn to read their own bodies, and I adjust every plan based on real feedback — not just numbers. Based in Walpole, MA, coaching remotely and locally.

The pace is the output, not the input. I coach athletes to meet their body where it is each day — using perceived effort as the guide and the training plan as a flexible framework, not a contract. Process over perfection. Consistency over heroics. The goal is to build runners who feel confident, stay healthy, and actually enjoy the miles.