DOUG GUTHRIE
Winter Springs Florida
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Athlete Types
Swim
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Nutrition
Certifications
ESCI Level 1About
With over 25 years immersed in endurance sports, I’ve developed deep expertise across every aspect of triathlon training: nutrition, strength conditioning, gear, race strategy, and lifestyle integration. My experience has been shaped by mentors, personal study, and years of hands-on coaching. I hold certifications from USAT Level 1, Ironman University, 80/20 Certified Coaching, TrainingPeaks Level 2, and US Masters. I served as head coach of the YMCA triathlon program—guiding over 50 athletes —and now work with competitors nationwide through Gu3 Training. My athletes range from first-time finishers to those earning slots at IM 70.3 Worlds and Kona. My approach is built around balancing training with the demands of everyday life. By creating personalized plans and maintaining open communication, I remove the guesswork so athletes can focus on progress. Whether you're chasing your first Ironman or striving for elite results, I meet each athlete where they are—forming a partnership that supports growth and success on race day. Career Highlights: - 30× Ironman Finisher - 8× Ironman World Championship Kona Finisher - Ultraman Florida Finisher (2023) - USAT Ultra Distance National Champion
Philosophy
Coaching Philosophy My mission as a coach is to help every athlete reach their fullest potential—regardless of experience level. I draw from personal experience and years of working across the endurance spectrum to create thoughtful, customized training plans tailored to each athlete’s goals, schedule, and lifestyle. What truly defines a successful coach-athlete relationship is trust, built through open communication and consistent feedback. While anyone can follow a generic plan, the true value of coaching lies in crafting a strategy that meets the individual where they are and evolves as they grow. When communication is strong, execution becomes clear—and progress follows naturally. I have successfully coached multiple Ironman World Championship Finishers, Boston Marathon and finishers of all triathlon distances.
Credentials
USAT Level 1 TrainingPeaks L2 US Masters L2 Ironman University Certified Coach
Accomplishments
Athletic Highlights – Doug Doug is a seasoned endurance athlete with over 25 years in the sport, earning recognition as a multiple-time Boston Marathon qualifier and 9-time Ironman World Championship finisher. He’s completed 29 full-distance Ironman races and numerous 70.3 events, with a personal record of 9:32 at the 2015 North American Championship in Texas—achieving the fastest run split in his age group (3:20). His triathlon journey is defined not only by consistency, but by standout performances across distances and formats: 🏆 Elite Performances & Podiums - Ultraman Florida Finisher (2023) - 2nd Place – Ironman Chattanooga (2023) - 7th Place – IM Chattanooga (2018) - 3rd Place – IM Louisville (2018) with fastest AG run split (3:19), 2nd-fastest in event’s 10-year history (M50–54) - 2nd Overall – The Great Floridian (2014 & 2015), just two weeks post-Kona in 2015 - Course Record Holder – Great Floridian (M50–54) - Florida State Masters Champion – Space Coast Marathon (2019, 3:10) - 4th Overall – 2020 Great Floridian, 1st Age Group - USA Triathlon National Champion and Masters Champion (2020 GFT) ⏱️ Ironman World Championship Milestones - Qualified for Kona 8 times, with two qualifications in 2021 alone (IM Tulsa and IM Chattanooga) - Set course record at IM Chattanooga (M55–59 AG), fastest AG run split ever (3:36) - 2023 Ironman World Championship: Coached and guided Adrienne Bunn to a world record as the youngest-ever IMWC finisher (12:41), winning her division (PCID) —Doug began coaching Adrienne in May 2023 Doug’s depth of experience fuels his ability to coach others through every stage of the journey—from first-time finishers to world championship qualifiers. His legacy isn’t just about races—it’s about resilience, strategy, and guiding others to unlock greatness.
Experience
20+ years racing triathlons of all distances Ultramarathoner Ultraman 30x 140.6 8 x Ironman World Championship Kona Finisher Head Coach YMCA Multiple Boston and World Championship athletes qualifiers Florida State Champion Master Marathon runner