Cloning Myself
AI can be used with good or bad intentions. Ironically, being a victim of bad AI motivated and taught me how to use it for good. Last October I learned that Anthropic, the AI behem
Matt Fitzgerald ·
Training science, coaching, and the 80/20 method — from Matt Fitzgerald and the 80/20 Endurance coaching team.
AI can be used with good or bad intentions. Ironically, being a victim of bad AI motivated and taught me how to use it for good. Last October I learned that Anthropic, the AI behem
Matt Fitzgerald ·
Ask a room full of endurance athletes whether perfectionism helps or hurts, and you’d better clear your afternoon. Some will swear it’s the engine behind every good thing they’ve e
Jim Vance ·
Coaches of Color apprentice Rosina Garcia reflects on the challenges of coaching oneself. Last fall I was training for a couple of races: a cross-country 10K in December and a 50-m
Rosina Garcia ·
You’ve put in the training. You’ve done the work. So why does race day sometimes feel like it’s working against you? For many endurance athletes, the missing piece isn’t fitness or
Jim Vance ·
You’ve heard it before. “Just toughen up. Everyone gets nervous. Push through it.” Good advice — if you want to keep underperforming at the starting line, blow your pacing in the f
Jim Vance ·
Is HYROX a strength sport or an endurance sport? Most athletes assume it’s the former — and most athletes are leaving performance on the table because of it. In this Tuesday Teachi
Jim Vance ·
80/20 ENDURANCE — ATHLETE STORY “I Didn’t Do Anything Extraordinary. I Simply Followed a Well-Designed System.” How Brad Jansen returned to Ironman 70.3 Geelong at 55 — and finishe
Jim Vance ·
By Jim Vance When athletes think about recovery, they usually think about the big rocks: sleep, nutrition, hydration, rest days, and managing training load. All of that matters. Bu
Jim Vance ·
Endurance sports like running and triathlon demand a lot from the human body, bringing a constant underlying risk of overuse injuries. For many athletes, the intuitive approach to
Jim Vance ·
By Jim Vance Jeff Galloway wasn’t just a coach or a runner — he was a gateway into the world of running for thousands of people who might never have believed they could do it. Yest
Jim Vance ·