Conner Mantz: The American Marathon Record, Injury Comeback, and His Road Back to Boston

Connor Mantz is the American marathon record holder, but his journey to the top hasn’t been straightforward.

After a breakout 2025 season that included a record-breaking 2:04:43 at the Chicago Marathon, Mantz looked poised for even bigger things. But a sacrum stress fracture forced him off running for nearly three months.

In this episode, Alex Cyr sits down with Mantz to talk about his recovery, his build toward the 2026 Boston Marathon, and what it takes to compete with the best marathoners in the world.

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They discuss:

• Setting the American marathon record in Chicago

• The injuries that derailed his training

• How elite runners approach recovery and cross-training

• Whether Americans are closing the gap on East African runners

• Super shoes and how they’ve changed racing

• Doping concerns in professional running

• Why Utah produces so many elite distance runners

• His long-term goal of winning an Olympic medal in 2028

Plus a rapid-fire round covering shoe rotations, breaking two hours in the marathon, and who he trusts most to babysit his future child.

00:00 Intro
00:47 Meet American Marathon Record Holder Conner Mantz
02:30 Injury After Chicago & The Road Back
04:30 Running Through Injuries
06:30 The Sacrum Stress Fracture Explained
11:00 Cross Training While Injured
14:30 Returning to Running After 12 Weeks Off
17:40 Boston Marathon Build & Training Strategy
22:00 Benchmark Workouts Before a Marathon
24:00 Can Conner Mantz Win Boston?
25:30 Choosing Marathons: Legacy vs Prize Money
28:30 Olympic Gold vs Winning a Major
31:00 The Sour Patch Kids Doping Scare
36:00 Doping in Elite Running
44:30 The Enhanced Games Debate
49:00 Are Americans Catching East African Runners?
54:00 The Super Shoe Effect
57:00 Why Some Runners Improve So Fast
58:30 What Makes Conner Mantz a Great Marathoner
1:00:30 Why Utah Produces So Many Elite Runners
1:04:00 Goals for 2026 & Olympic Dreams
1:06:00 Rapid Fire Questions
1:15:00 Where to Follow Conner Mantz