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.

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He ran 3:58 off early-season training, and he's not done yet.

Jackson Spencer sat down with Dominic just days after becoming one of roughly 32 high schoolers in American history to break four minutes in the mile, and the conversation is exactly what you'd hope from a kid with this kind of season: honest, grounded, and full of detail that never shows up in a results column.

He walks through Arcadia blow by blow—targeting sub-8:30, counting splits through the mile, then letting the race take over—only to flash back to Brooks XC in the final 100 meters when Marcelo Mantecon nearly caught him again. 

He talks about what running a national-record 8:31 off early-season fitness means for the eight weeks still ahead, and why Coach Soles has to hype him up before races because Jackson keeps trying to stay humble.

The upcoming HOKA Festival of Miles gets its own chapter: Jackson and Quentin Nauman are both confirmed, and Jackson has one request going in: a 1:57 first 800m. He thinks sub-3:54 and a shot at Alan Webb's high school record are possible if the pacing is honest, and he's willing to commit to that on record.

He also gets into the daily doubles, the beet root powder ritual on race day, averaging 60 miles per week through track season, and what staying consistent has done for him beyond the times—including what he actually wants to be remembered for when this is all over.

Tap into the Jackson Spencer Special.

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Vinny Mauri was working the floor at a running shoe store in Ohio. Then he ran 2:05:54 and became the fastest American marathon debutant in history.

Nobody was watching. That's not hyperbole.  

While the running world was fixated on Sabastian Sawe's sub-two-hour performance in London, a 25-year-old from Warren, Ohio quietly dismantled the record books at the Glass City Marathon in Toledo—running solo, without a sponsor, without a pacer, and without anyone outside his circle knowing what was coming. 

Vinny Mauri's 2:05:54 didn't just break Ryan Hall's American debut record of 2:08:24. It shattered it by nearly three minutes.

Dominic sat down with Vinny just two days after the race; before the contracts, before the headlines fully caught up, before the moment had time to calcify into legend. What you get is the raw version: how Vinny built this alone in Ohio, grinding 5:40 and 5:50 pace every day, ripping 20- and 22-mile long runs at five-minute pace with no team, no coach, and no fanfare. 

A former Arizona State and Notre Dame runner with a 13:34 5K under his belt and a moderately successful collegiate résumé, Vinny never announced himself as a marathon talent. He just trained, showed up in Toledo, won by fifteen minutes, and then talked about what comes next.

This is the conversation that happens before everything changes. Share it with one person who needs to believe in what's still possible.

Tap into the Vinny Mauri Special.

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Charles Hicks ran 2:04:35 at Boston in his second marathon. His coach was watching from Eugene, trying not to lose his mind. 

Alex Ostberg and Charles Hicks were Stanford teammates for exactly one year: Ostberg a fifth-year senior, Hicks a freshman who wasn't even first on the depth chart in his incoming class. Five years later, they're coach and athlete inside Nike's Swoosh Track Club, and they just executed one of the most stunning American marathon performances in history.

In this conversation, they pull back the curtain on the full arc: the Cherry Blossom 10-Miler that first convinced Jerry Schumacher the marathon was Charles's calling; the abbreviated eight-week build into New York that exceeded everyone's expectations; and the 16-week Boston block where Charles never dipped below 105 miles in a single week. 

They talk about what it actually means to train under Schumacher—workouts revealed 10 minutes before, plans built in two-week cycles, and a phone call every night at 9:30 PM—and why Ostberg's role is less about designing sessions and more about being a steady hand when the experiencing self and the remembering self stop agreeing. 

Charles also explains the text he sent Ostberg after a disappointing half marathon in Atlanta that became the quiet thesis of the entire Boston build: I will navigate my failure points more effectively than my competition. 

Affirm the past. Appreciate the present. Inject ambition into the future.

Tap into the Charles Hicks and Alex Ostberg Special.

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He won Olympic gold in 2016, more with his brain, not his legs—and the running world never forgot it. 

Matthew Centrowitz Jr., the only American man to win Olympic 1,500m gold since Mel Sheppard in 1908, sits down with The Running Effect for a wide-open conversation about what it took to become the most decorated American miler of his generation.

From his 2011 NCAA title at Oregon to three World Championship medals, five national outdoor crowns, and that unforgettable Rio final—Centro built a decade-long résumé that no American middle-distance runner has touched. His 3:30.40 PR at Monaco still stands as the benchmark. His tactical IQ was something no training plan could manufacture.

This is a conversation about how you build a career like that—the coaching systems, the rivals, the near-misses, and the one race that made it all permanent. 

From Alberto Salazar's Oregon Project to the Bowerman Track Club under Jerry Schumacher, Centro navigated the highest-pressure environments in American distance running and came out the other side with gold.

We want to know what it actually felt like to sit in a field of the world's best 1,500m runners and know—before the bell—that you had already won. And how a decade of that kind of focus shapes a man long after the spikes come off.

The legend of Centro, here at The Running Effect.

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. 

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

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Joey Miuccio came to Texas undertrained, ran 111 miles, and cried in a chair. He'd do it all again.  

This one goes deeper than the G1M Ultra. Joey breaks down what actually separates a backyard ultra from Leadville. It'snot the distance, it's that you can never slow to a crawl. Every lap has a clock, and the clock doesn't care about your knee. 

He hit mile 85 feeling invincible, convinced he'd be out there forever. By mile 91 he was bargaining with himself again. 

The roller coaster never stops, and this conversation captures every drop of it.

There's a moment mid-race where Kendall Picado Fallas—still competing for the win—quietly falls in beside Joey and drags him through his 100-mile lap without being asked. That moment says everything about the culture inside the G1M Ultra that the highlight reels don't show.

But the conversation that lingers comes after the race recap. 

Joey gets honest about the trap of always chasing the next thing, why satisfaction has to live in the journey rather than the finish line, and what it felt like to hit 111 miles with minimal training and still wonder if he left something out there. 

Tap into the Joey Miuccio Special.

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Every runner has a mental checklist of what's holding them back.

Iron deficiency, life stress, ice bath mythology, and the gap between ambition and biology probably aren't on it—but after this episode, they will be.

Alex Ostberg is back for the Rundown Recap, and he starts where most coaches start when an athlete is underperforming: iron. They discuss why iron is so central to the oxygen transport system, what symptoms to watch for before things get serious, and how to get tested without a physician's order. 

The conversation then shifts to something harder to quantify: stress. Alex makes the case that mental load isn't separate from training—it modifies how the body adapts to it. He and Dominic dig into how elite runners like Grant Fisher and Jess McLean actually use added life structure to their advantage, and what high schoolers stacking SATs on top of race days can learn from Coach Milt's approach to finals week.

From there, the ice bath episode. Alex isn't anti-ice:he's anti-misunderstanding. The recovery oil study alone will make you rethink one of the most entrenched rituals in the sport.

The final piece ties it all together: biology moves slower than your ambitions. Alex breaks down why backwards-facing training plans are built on false certainty, and why the athlete who stops fighting physiology is always the one still standing at the end of a long season.

Tap into the Alex Ostberg Rundown Recap 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. If this episode blesses you, please share it with a friend!

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

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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  

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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  

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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.

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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!

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