
Zach Bitter: podcast appearances and interviews
About Zach Bitter
Zach Bitter is an American ultramarathon runner known for setting world records in the 100-mile run and the 12-hour run on track. He achieved these records during the Six Days in the Dome event in Milwaukee, Wisconsin, on August 24, 2019. His 100-mile time of 11 hours, 19 minutes, and 13 seconds surpassed the previous world record held by Oleg Kharitonov by nearly 11 minutes. This performance also beat his own American record of 11 hours, 40 minutes, and 55 seconds. Following the record in the 100-mile event, Bitter continued running for an additional 40 minutes to extend his 12-hour distance record to 104.8 miles, improving the previous mark by more than three miles. His 12-hour record was later surpassed by Lithuanian Aleksandr Sorokin in January 2022. Bitter attended the University of Wisconsin - Stevens Point from 2005 to 2008, where he was a member of the Track and Field and Cross Country teams. During his collegiate career, he was a top five runner on the men's cross-country team, recorded a personal best of 26 minutes and 34 seconds in the 8k, and competed in indoor and outdoor track and field, achieving a personal best of 9 minutes and 23 seconds in the 3000-meter run. He has stated that his experience at UW-SP influenced his progression into ultramarathon running, noting that he improved with longer distances.
Summary based on Wikipedia, available under CC BY-SA.
Podcasts Zach Bitter appeared on
Shows that have booked Zach Bitter as a guest, ranked by appearance count.



















Latest Zach Bitter interviews
Every podcast episode Zach Bitter has appeared on, newest first.



Why Zach Bitter Went High Carb After 14 Years of Low Carb Fueling

American Record Holder Zach Bitter on Carb Experiments, DNF's, and Learning From Failure

Training for Speed and Longevity with World Record Holder Zach Bitter

298: Nutrition For Runners w/ Zach Bitter



Ep 551 | Running 100 Miles in 11.19 on only 40 Grams Of Carbs Per Hour - Zach Bitter

Ep 551 | Running 100 Miles in 11.19 on only 40 Grams Of Carbs Per Hour - Zach Bitter

Ep 551 | Running 100 Miles in 11.19 on only 40 Grams Of Carbs Per Hour - Zach Bitter

#96 | Zach Bitter | What It Takes To Run 100 Miles Under 12 Hours


The Endurance Episode: Zach Bitter on How to Push the Boundaries of Endurance

Zach Bitter: Origin Story, Juggling Life with an Ultrarunning Partner, and the Javelina Jundred

#401: Zach Bitter – Mindset Secrets From America's Fastest 100-Mile Runner

#401: Zach Bitter – Mindset Secrets From America's Fastest 100-Mile Runner



Ep. 83: Zach Bitter - Ultramarathon Running & Ketogenic Fueling


EP241: How an Endurance Athlete Physically and Mentally Prepares for a Race with Zach Bitter


Guests who appear alongside Zach Bitter
Guests who share the same shows as Zach Bitter. Worth a look if you're building a panel or pitching the same circuit.
Frequently asked questions
What podcasts has Zach Bitter been on?
Zach Bitter has appeared on 19 podcasts across 23 episodes. Notable shows include The Strength Running Podcast, Bad Boy Running, The Jeremy Miller Podcast.
When was Zach Bitter's most recent podcast appearance?
Zach Bitter's most recent appearance was on "#49 How Zach Bitter Thinks About Training". The People Run Podcast, published Jun 4, 2026.
Which podcast has Zach Bitter appeared on most often?
The Strength Running Podcast. 2 appearances on record, most recently Jan 8, 2026.
