July 12, 2026

E423: From the Archive: Never Too Late: Jeff Weiss's Journey from 10K to Ultra Marathons

E423: From the Archive: Never Too Late: Jeff Weiss's Journey from 10K to Ultra Marathons
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Key Takeaways

  • It is never too late to transform your life, as evidenced by Jeff Weiss starting his journey toward ultra marathons at age 48.
  • Physical endurance training and professional high achievement are deeply connected, as the discipline required for one often fuels success in the other.
  • Effective ultra marathon training requires a consistent regimen, careful health monitoring, and a willingness to push past the fear of failure.
  • Setting audacious goals acts as a catalyst for personal growth, keeping you energetic and engaged regardless of your age.
  • Success in long-distance endurance events is built on a foundation of incremental milestones rather than overnight transformation.

Summary


In this episode, Jeff Weiss shares his incredible journey from running a 10K at age 48 to completing ultra marathons and Ironman races, illustrating that it's never too late to pursue new challenges. We explore the connection between fitness, audacity, and professional achievement, offering practical insights for living a bold, energetic life.

Chapters


00:00 Introduction and Background

02:57 The Journey to Fitness and Transformation

06:12 Setting Goals and Achieving Milestones

08:48 The Connection Between Fitness and Professional Achievement

11:22 Understanding Audacity and Big Goals

14:29 Overcoming Fear of Failure

17:01 Goal Setting and Life Adventures

19:39 The Importance of Reading and Learning

22:36 Racing Against Time: The New Book

25:20 The Impact of Aging and Fitness

27:50 Training Regimen and Health Monitoring

30:26 Nutrition and Supplementation

33:03 Experiences in Ultra Marathons

35:56 Reflections on Business and Endurance Sports

38:29 Final Thoughts and Encouragement

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Frequently Asked Questions

How can I start ultra marathon training if I'm older?

Start by setting small, achievable goals like a 10K, and gradually increase your mileage while focusing on consistency and listening to your body's health markers.

What is the relationship between fitness and professional success?

Maintaining a fitness regimen improves mental clarity, discipline, and energy levels, all of which directly translate into better performance and endurance in a professional environment.

How do you overcome the fear of failure when taking on big physical challenges?

View failure as a necessary part of the learning process and focus on the audacity of the goal rather than the possibility of not completing it perfectly.

Is it realistic to start running marathons in your late 40s?

Absolutely; as Jeff Weiss demonstrates, starting at 48 is a perfect time to leverage your life experience and mental toughness to achieve significant athletic milestones.