Testimonials
At Kestrel Coaching, results speak louder than words—but the stories behind them matter just as much. Deb Hamberlin’s athletes consistently describe her as more than a coach: she’s a mentor, motivator, and partner in their journey. From first-time marathoners to seasoned ultrarunners tackling 250-mile races, Deb’s individualized approach has helped athletes break through limits, stay healthy, and discover joy in the process.
Here are just a few reflections from runners who’ve experienced the power of training, guidance, and community with Coach Deb.
I’ve known Deb Hamberlin for nearly 20 years, and throughout that time she has been a mentor, role model, and now coach who has profoundly shaped my journey as an endurance athlete. From pacing me to my first Boston Qualifier in 2010 to helping me complete the grueling Leadville 100 as part of the Leadman series, Deb has always brought wisdom, calm guidance, and contagious passion to everything she does. Whether she was running alongside me or inspiring me from her own competitions—like at the Javelina 100 in 2010 which nudged me into ultrarunning—Deb has a rare gift for making the seemingly impossible feel within reach.
Now in my mid-60s, I began working with Deb formally in 2024 through Kestrel Coaching. She custom-tailored my training to reflect both my aspirations and the realities of an aging but still ambitious athlete. Her attention to detail, focus on mobility and strength, and genuine care made each day’s training simple to follow and sustainable, despite my busy life and joint issues. I had strong performances in several 50Ks, finishing at or near the top of my age group. Deb’s deep love of the sport is infectious, and I’m grateful to continue working with her as I pursue my next ultrarunning adventure.
Deb Hamberlin and Kestrel Coaching are world-class – 5-STAR
I’ve worked with Deb as my ultramarathon coach, and the results speak for themselves — I’m stronger than I’ve ever been in my life. With her expert guidance, I successfully completed Cocodona 250 and am on track to race nearly 1,000 miles in 2025. That level of endurance and consistency wouldn’t be possible without Deb’s thoughtful planning and unwavering support.
Her attention to detail is unmatched — every training block is tailored to my goals, physiology, and schedule. Deb is also incredibly communicative and responsive, always checking in at the right moments and adjusting based on real-time feedback. I’ve never once felt lost or on autopilot with her coaching. She’s fully invested in her athletes, and it shows.
If you’re looking for a coach who can help you reach ambitious goals while keeping you healthy, motivated, and mentally strong — look no further than Deb Hamberlin. I can’t recommend her enough.
Working with Coach Deb has injected new energy into my running life. As an athlete in my late 50’s, I was looking for a coach who truly understood the unique challenges and goals of aging runners.
She brings a valued combination of deep knowledge, compassion, and responsiveness to her coaching. No question goes unanswered, and no concern is ever too small. She’s always there with thoughtful guidance, encouragement, and a plan that feels both ambitious and realistic and it is always based on my personal goals.
Beyond the workouts and race prep, what sets her apart is her focus on community. She fosters a welcoming, supportive environment where every athlete-regardless of pace or background-feels seen and valued. I’ve not only grown stronger and more confident as a runner, but l’ve also found a sense of belonging that I didn’t anticipate.
Thanks to her, l’ve achieved many goals I didn’t think were possible. Thanks Coach Deb!
Working with Deb Hamberlin has been one of the best decisions I’ve made for my training and overall well-being. She’s more than just a coach, she’s a dedicated partner in my fitness journey.
Deb takes the time every day to check in on my workouts. For key sessions, she’ll often leave thoughtful comments that give me extra motivation or clarity on what to focus on. When I miss a workout, she doesn’t just move on or pile on guilt, instead, she offers encouragement and helps me get back on track. That kind of support makes a big difference.
One of the things I value most is how Deb tailors my training around my life. She understands my daily routine and makes sure the workouts are realistic and sustainable. It’s such a relief not having to plan or overthink, every day I just open the app and follow what she’s laid out for me. The simplicity and structure make the process so easy to stay consistent with.
I’ve dealt with a few injuries over the past few years, and Deb has always helped me navigate those with care. Whether it’s dialing back volume, adding strength work, or suggesting specific PT exercises, she truly understands what it means to train smart, not just hard.
Deb brings both heart and expertise to her coaching. I’m healthier, more motivated, and more confident in my training because of her.
