#106: Running After 40: Lessons To Improve At Any Age, with Sean Lee

Thanks to LMNT for sponsoring this video! Head to to get your free sample pack with any purchase. Sean Lee started running at 45 and has since accomplished what most athletes half his age only dream of: 17 marathons with a 2:54 PR, 2 Ironmans, and 25 ultras including UTMB, Badwater 135, and AC 100. We dive into his decade-long journey, exploring lessons from early mistakes, refined race strategies, and how he balances running with strength training to become stronger, happier, and healthier. Learn more about our Personal Best Running Coaching Program at Watch this full video on YouTube: CHAPTERS: 0:00 – Lessons from 10 years of training and racing 1:31 – Sponsor LMNT 2:43 – Introduction: Sean's journey 3:19 – What advice would Sean give to his younger self 7:38 – Race preparation and fueling mistakes 10:03 – Sean's training evolution over the years 14:35 – Cross-training and climbing for runners 15:19 – Advice for beginners trying climbing or new activities 19:50 – Coaching others vs. applying lessons to yourself 24:05 – Entering races with less pressure and expectations 27:03 – Strength training and mobility for runners 40, 50, 60+ 28:19 – People starting out with rucking and weighted vests 33:38 – Advice for new runners to build consistency 37:26 – Getting over the initial "hump" of running 43:39 – Most challenging and most memorable race experiences 46:40 – Running gear that made the biggest difference 50:31 – Favorite nutrition, gels, and electrolytes 52:47 – Toe socks, blisters, and foot care strategies 55:43 – Next adventures and volunteering at races 59:08 – Where to find Sean 59:48 – How to become a stronger, happier, healthier athlete FIND SEAN: ► Instagram: ► Strava: ► Facebook: LINKS & TOOLS MENTIONED ► Conversation with Taylor Knibb: ► Conversation with Nicki: ► Conversation with Lawrence: ► Nutrition Gels: ► Electrolytes: ► Socks: ► Leukotape: ► Headlamp: YOU CAN FIND ME, COACH FLORIS GIERMAN HERE: ► Free Weekly Running Newsletter: ► Our Personal Best Coaching Program: ► YouTube: ► Strava: ► Instagram: ► Extramilest: ► Path Projects: ► Podcast: Affiliate Disclosure: I may earn commissions if you purchase items via my affiliate links. "As an affiliate I earn from qualifying purchases." Affiliate links do not increase cost to you. Also, you do not need to use these links. You can also search for these same items in Amazon or on any search engine/shopping site of your choice and buy/research them that way. ABOUT THE EXTRAMILEST SHOW: A podcast and YouTube channel where host Floris Gierman interviews world class athletes, coaches and health experts on the topic of how to become a stronger, healthier and happier athlete. More info about our Personal Best Running Coaching Program can be found at .

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#106: Running After 40: Lessons To Improve At Any Age, with Sean Lee is an episode from The Extramilest Podcast by Floris Gierman.

This episode is 01:02:47 long.

This episode was published on Aug 23, 2025.

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