Mentality Wins: The Athlete's Playbook for Thriving in Sport and Life

Every athlete knows the grind of training. Early mornings, late nights, and endless reps. What separates good from great, however, is what happens between the ears. Pressure, self-doubt, perfectionism, and fear of failure can shake even the most prepared competitors, and most athletes are never taught how to handle those moments in a healthy, effective way.

Mentality Wins: The Athlete’s Playbook for Thriving in Sport and Life fills that gap. Written by two former athletes turned clinicians focused on athlete mental health and performance, this book translates the science into simple routines you can apply in real time. Instead of vague advice about “being mentally tough,” you get specific skills to quiet your inner critic, manage performance anxiety, reset after mistakes, and stay present when the pressure is highest.

These tools come from authors who understand the mental game at the highest levels. Jonathan Jenkins, PsyD, CMPC, has spent more than a decade supporting athletes through Massachusetts General Brigham Hospital and serves as Team Clinical and Performance Psychologist for the New England Patriots, Behavioral Sport Psychologist for the Boston Red Sox, and a sport psychology consultant for the Para Rowing Foundation. A member of the Harvard Medical School teaching community and a former college lacrosse co-captain, he brings both clinical expertise and an athlete’s perspective to every page.

Kimberly H. McManama O’Brien, PhD, LICSW, is the founder and director of Unlimited Resilience, a mental health practice for athletes by athletes, and the co-founder and co-director of Athletes Better Together, an athlete peer mentoring program. She has co-authored mulitple articles and book chapters on adolescent mental health and suicide prevention, received the American Foundation for Suicide Prevention’s Young Investigator Research Award, and is a former Harvard hockey co-captain and national champion, bringing both research rigor and lived experience to the book’s approach.

Organized into four key pillars— Focus , Flow , Finish , and Flourish — Mentality Wins helps you train your mind with the same intention you bring to strength and conditioning or skill work. You will learn how to prepare for big moments, find a steady rhythm in competition, respond to setbacks without spiraling, and use your sport as a place to grow as a whole person, not just as a performer.

Whether you are stepping onto the field, teeing off on the golf course, taking the ice or court, or supporting athletes as a coach or parent, this book offers practical mental skills you can use right away. The tools are built for real life: quick resets between plays, routines you can build into daily practice, and reflections that enhance performance, well-being, and resilience.

If you want to manage stress, sharpen focus, and compete with more confidence, Mentality Wins will show you how to build a mentality that holds up when it matters most—in sport and in life.