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Joe Rogan · 2025-09-25

Joe Rogan Experience #2384 - Mark Kerr

MMA pioneer Mark Kerr tells Joe Rogan how elite wrestling conquered fighting, and opens up about addiction, sobriety, and seeing his life turned into a movie.

Joe Rogan Experience #2384 - Mark Kerr
The guest

Mark Kerr: Pioneering heavyweight MMA fighter and two-time ADCC champion who dominated the early UFC and Japan's Pride organization in the late 1990s. His struggles with opioid and alcohol addiction were documented in the 2002 HBO film 'The Smashing Machine' and dramatized in the 2025 movie of the same name starring Dwayne Johnson.

What this episode covers

Joe Rogan and Mark Kerr reflect on Kerr's career as one of MMA's first dominant elite wrestlers and the brutal early days of the UFC and Pride in Japan. They trace the sport's explosive evolution from no-rules, untested 1990s spectacles to today's hyper-conditioned, technical athletes, discussing fighters like Khabib, Usyk, Chimaev, Pereira and the supremacy of wrestling. The conversation turns deeply personal as Kerr recounts how the Smashing Machine documentary captured him at the depths of his opioid addiction, and how he eventually got sober. They close on recovery, the psychological cost of elite competition, the singular drive required for greatness, and the new movie about his life.

Recommended on this episode

MediaRecommended

Rocky

John G. Avildsen

“that was a great movie”
“Rocky one was real... I drank a raw egg and I ran around the block as soon as I got home... that was a great movie.”— Joe Rogan

The guest's own work

MediaBy the guest

The Smashing Machine (2025)

Benny Safdie

“the movie's fantastic... it's a movie that happens to be about MMA, but it's a great movie.”— Joe Rogan
MediaBy the guest

The Smashing Machine (2002 documentary)

John Hyams

“I don't think anybody had any idea until the Smashing Machine documentary came out. And when that documentary came out, everybody was like, "Holy shit."”— Joe Rogan
MediaBy the guest

Mark Kerr: Seek and Destroy (fighting techniques video series)

Mark Kerr / Panther Productions

“it's this videotape series that I did for Panther Production. Here it is, Sam... fighting techniques. Mark Kerr seek and destroy.”— Mark Kerr

Also referenced (named, not recommended)

MediaReferenced

Enter the Dragon

Robert Clouse

“the symbols of kanji for a dragon, right? Bruce Lee was enter the dragon... dragon is all these parts to make one mythical thing”— Mark Kerr
MediaReferenced

The Hurt Locker

Kathryn Bigelow

“that movie Hurt Locker when he's walking around the supermarket you can tell he wants to go back.”— Joe Rogan
ProductReferenced

VersaClimber

VersaClimber

“that was the first time I saw a Versa Climber. I was like, whoa, conditioning... I was on a Versa Climber two days ago.”— Joe Rogan

Big reveals from this episode

  • Usyk trained 600 rounds before the Tyson Fury fight, with a fresh sparring partner every third round, and did rounds where he wasn't allowed to punch at all.
  • Kerr's biggest Japan payday was over half a million dollars, handed to him in cash in a hotel room.
  • He smuggled his fight earnings out of Japan stuffed into cowboy boots and a pillowcase, $40,000 in each boot.
  • Kerr reveals he showed himself shooting up on camera in the documentary because he needed to finally tell someone what he was doing.
  • He had final veto power over the documentary and nearly killed it, not seeing a single frame until the finished cut screened in LA.
  • Kerr shares his sobriety story: his son asked him to stop drinking, and he has now been sober seven years.
  • Kerr says he should have retired after the Pride Grand Prix, admitting he had lost the dark switch needed to hurt people.
  • Kerr admits that even after winning he felt empty, always needing to chase the next thing to feel 'enough.'

Worth remembering

  • Rogan first worked the early UFC doing backstage interviews and actually lost money doing it, quitting until Zuffa later rehired him.
  • In Pride, organizers openly stated they did not test for steroids and would let fighters pass clean urine for each other.
  • Kerr's mentor Chris Campbell won a wrestling bronze medal at age 37 in the 1992 Olympics, among the oldest Olympic wrestling medalists ever.
  • Pride co-founder Mr. Ishijaka was actually a Korean man named Kim Duku who used a Japanese name to do business in Japan.
  • Kurt Angle won Olympic gold with a broken neck after being injured weeks earlier at freestyle nationals.
  • David Goggins, at 50 with two bad knees, out-trains world champions; he secretly worked as a smoke jumper just because it was hard.
  • The 1963 Gene LeBell vs. Milo Savage match was an early mixed-style fight; Savage allegedly wore brass knuckles and was made to wear a gi.
  • Texas legalized an ibogaine initiative under former Governor Rick Perry; the psychedelic is reportedly 80%+ effective at stopping addiction in one dose.
  • Neither Kerr nor champion Michael Bisping ever faced the calf kick in their entire careers, despite it now being a fight-ending staple.
  • Crawford jumping two weight classes to beat Canelo, and Usyk's heavyweight run from cruiserweight, are cited as athletic anomalies.