THE RUNNING EFFECT PODCAST

He came out of nowhere, tied a backyard ultra, and accidentally built one of running's most compelling brands—all before turning 22. 
  
Now Kim Goldwald is back on the show, and this time, he left Texas without the crown.

Kim returns to The Running Effect fresh off his second Go One More Ultra, where he finished 58 loops (241.5 miles) in brutal, rain-soaked conditions before his right glute gave out for good. It's the first backyard loss of his career, and he couldn't care less. In this conversation, Kim breaks down what actually changed—not the outcome, but the person who walked off those trails.

He talks about the version of himself that "died" at this race: the one who was always sprinting to the next drop, the next event, the next milestone without ever stopping to feel any of it.

He opens up about Rappid Run’s explosive growth (from $70k in total revenue before June 2024 to $900k by year's end, and $400k in sales over a single race weekend) and why the numbers aren't the point anymore. The brand's real mission, he says, is simple: inspire people, change lives, mean something.

He's 22. He's already different. And he's coming for everybody next time.

Tap into the Kim Gottwald Special.

If you enjoy the podcast, please consider following us on Spotify and Apple Podcasts and giving us a five-star review! I would also appreciate it if you share it with your friend who you think will benefit from it.

S H O W  N O T E S  

-The Run Down By The Running Effect (our new newsletter!): https://tinyurl.com/mr36s9rs

-Our Website: https://therunningeffect.run  

-THE PODCAST ON YOUTUBE: https://www.youtube.com/channel/UClLcLIDAqmJBTHeyWJx_wFQ

-My Instagram: ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠https://www.instagram.com/therunningeffect/?hl=en⁠⁠⁠⁠⁠⁠

-Take our podcast survey: https://tinyurl.com/3ua62ffz

SOCIALS:

Instagram: @kim.gottwald 
TikTok: @kimgottwald 
YouTube: @Kim.gottwald

The woman treating Olympic athletes says the sport has been coaching women wrong for decades, and she's built the clinic, the science, and the summit to prove it.

Dr. Lyndsay Centrowitz is a Doctor of Physical Therapy, pelvic health specialist, and USATF medical provider on a mission to rebuild how running treats the female body. She owns StrongHER, a women's-only PT practice in Park City, Utah, and trains clinicians nationwide through The Pace Academy.   

But her work goes far beyond the treatment table.

The 2025 Canadian Postpartum Guidelines just rewrote the rulebook for female runners returning after childbirth, ditching the old "wait six weeks" standard in favor of movement that starts immediately and builds toward 120 minutes of moderate-to-vigorous activity per week. 

RED-S is still silently destroying careers at the high school level, and many coaches have received zero training on it. This August, Lyndsay is hosting the Female Runner Summit in Park City specifically to intercept that problem before it reaches campus.

She is also a new mother and someone with a front-row seat to what happens when elite athletes face the hardest transitions of their careers. 
We are sitting down with one of the most important voices in women's running medicine for a conversation that is long overdue.

Tap into the Dr. Lyndsay Centrowitz Special.

If you enjoy the podcast, please consider following us on Spotify and Apple Podcasts and giving us a five-star review! I would also appreciate it if you share it with your friend who you think will benefit from it. 

Comment the word "PODCAST" below and I'll DM you a link to listen. If this episode blesses you, please share it with a friend!

Comment the word "PODCAST" below and I'll DM you a link to listen. 

If this episode blesses you, please share it with a friend!

S H O W  N O T E S  

-The Run Down By The Running Effect (our new newsletter!): https://tinyurl.com/mr36s9rs

-Our Website: https://therunningeffect.run 
 
-THE PODCAST ON YOUTUBE: https://www.youtube.com/channel/UClLcLIDAqmJBTHeyWJx_wFQ

-My Instagram: ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠https://www.instagram.com/therunningeffect/?hl=en⁠⁠⁠⁠⁠⁠

-Take our podcast survey: https://tinyurl.com/3ua62ffz

He's 0.08 seconds from the four-minute mile, and Festival of Miles is the race he's had circled all year. 

Caden Leonard arrives in St. Louis as the top-ranked high school miler in the country—coming off a 4:00.07 indoor and a 4:01.02 outdoor, the fastest mile ever run by a prep athlete on Texas soil. Last year he ran this same race through a stress reaction nobody knew about.

This year he's healthy, hungry, and done waiting. 

In this conversation, Caden breaks down exactly how he plans to race the most loaded high school mile field of the year– with Jackson Spencer, Quentin Nauman, Alan Webb's record hovering in the background—and why his strategy isn't to chase a time, it's to win. He talks about extending the kick to make the hurt last longer, staying on the pace instead of reacting to it, and what it cost him last year to give guys like Quentin a head start he couldn't make up.

He also gets into what sub-4 at Festival of Miles would actually mean; not just for him, but for his dad, who has now coached two Carroll milers to the doorstep of the barrier. Caden watched Reed Brown do it online as a kid and decided that was the standard. 

Festival of Miles is where he finds out if he's right.

Tap into the Caden Leonard Special.

If you enjoy the podcast, please consider following us on Spotify and Apple Podcasts and giving us a five-star review! I would also appreciate it if you share it with your friend who you think will benefit from it.

S H O W  N O T E S  

-The Run Down By The Running Effect (our new newsletter!): https://tinyurl.com/mr36s9rs

-Our Website: https://therunningeffect.run  

-THE PODCAST ON YOUTUBE: https://www.youtube.com/channel/UClLcLIDAqmJBTHeyWJx_wFQ

-My Instagram: ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠https://www.instagram.com/therunningeffect/?hl=en⁠⁠⁠⁠⁠⁠

-Take our podcast survey: https://tinyurl.com/3ua62ffz

Instagram: @_cadenleonard

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Martin Dugard has spent his whole life at the intersection of running and history, and The Long Run is where they finally collide.

Dugard is a #1 New York Times bestselling author with over 12 million copies sold, a three-time Raid Gauloises adventure racer, a co-holder of the global circumnavigation speed record, and a cross country coach who has built California state championship programs from scratch over two decades. 

And he's earned every word of this book.

In the 1970s, running was a fringe sport. What happened in between is one of the greatest untold stories in sports history, and Dugard just wrote the book on it. The Long Run drops April 14, and he joins the show to break down exactly how Frank Shorter's 1972 Olympic gold, Steve Prefontaine's counterculture fire, Joan Benoit Samuelson's 1984 Olympic breakthrough, and Grete Waitz's nine New York City Marathon victories turned a niche obsession into a global movement.

But this isn't just a history lesson. He gets into the coaching philosophy behind the 1970s greats, what today's running boom has in common with the first one, and why the athletes who built this sport still don't get the credit they deserve.

Tap into the Martin Dugard Special.

If you enjoy the podcast, please consider following us on Spotify and Apple Podcasts and giving us a five-star review! I would also appreciate it if you share it with your friend who you think will benefit from it. Comment the word“PODCAST” below and I’ll DM you a link to listen. If this episode blesses you, please share it with a friend!

Comment the word “PODCAST” below and I’ll DM you a link to listen. 

If this episode blesses you, please share it with a friend!

S H O W  N O T E S 

-The Run Down By The Running Effect (our new newsletter!): https://tinyurl.com/mr36s9rs

-Our Website: https://therunningeffect.run  

-THE PODCAST ON YOUTUBE: https://www.youtube.com/channel/UClLcLIDAqmJBTHeyWJx_wFQ

-My Instagram: ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠https://www.instagram.com/therunningeffect/?hl=en⁠⁠⁠⁠⁠⁠

-Take our podcast survey: https://tinyurl.com/3ua62ffz

Jonny Davies ran 119 miles on a Texas ranch, vomited up half a bottle of water, and still had to be talked out of going back for one more lap.

Fresh off his second BPN Go One More Last Man Standing Ultra (and 17 more miles than the year before), Jonny sits down with Dominic to unpack what really happens when the race strips everything away.

He gets into the brutal physics of surviving Texas heat at 105°F as a 6'4", 220 pound guy from the UK, the moment his crew drew the red line and pulled him from the race, and the stat that stopped him cold before his first G1M: 80% of people who quit a backyard ultra quit in the chair, not on the course. 

He wasn't going to be one of them.

But this conversation moves well beyond race day. 

Jonny traces the philosophy that carried him through a devastating breakup right after Run the Capitals—his 596 mile, 11-day run through every UK and Ireland capital—and explains how the same stubbornness that kept him moving on broken feet is the thing he now leans on in ordinary life. 

His dad's voice from the rugby pitch cuts through every dark moment: you can't play rugby on the floor. His work with CALM, the UK suicide prevention charity, gives everything else its weight. And when Dominic asks who he's trying to become, Jonny's answer is disarmingly simple: 

just better than yesterday, every day, no destination required.
Tap into the Jonny Davies Special.

If you enjoy the podcast, please consider following us on Spotify and Apple Podcasts and giving us a five-star review! I would also appreciate it if you share it with your friend who you think will benefit from it.

S H O W  N O T E S   

-The Run Down By The Running Effect (our new newsletter!): https://tinyurl.com/mr36s9rs

-Our Website: https://therunningeffect.run  

-THE PODCAST ON YOUTUBE: https://www.youtube.com/channel/UClLcLIDAqmJBTHeyWJx_wFQ

-My Instagram: ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠https://www.instagram.com/therunningeffect/?hl=en⁠⁠⁠⁠⁠⁠

-Take our podcast survey: https://tinyurl.com/3ua62ffz

INSTAGRAM: @jonnyrdavies 
TikTok: @jdrunsfar