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Human Performance Outliers Podcast with Zach Bitter

Oct 6, 2026

Allison Mercer is an ultramarathon athlete who has competed at both 50km and 100km World Championships, Tunnel Hill, and Strolling Jim. She joined me to unpack why the World 100 KM deserves more attention, and what ingredients make ultramarathons grow.

Allison: @onewomandanceparty | Strava:


Sep 25, 2026

Kim Gottwald is a German ultra runner and content creator who went from law student to backyard-ultra standout by documenting extreme projects in public, including a co-win at Go One More in Texas, and a 449 km Last Soul Ultra victory at home. He co-founded the running brand Rappid, became BPN’s first German athlete,...


Sep 22, 2026

Phil Gore holds the World Best mark for the Backyard format, completing 119 “yards” for a total of 495.83miles. He recently completed a personal project, called Project 168, where he aimed to see if he would be able to last 168 yards (700 miles). He ended up tapping out at 152 yards (633.75 miles). We discussed...


Sep 10, 2026

Brian Reynolds is a Brooks-sponsored double below-knee amputee runner who, in 2026, became the first athlete in that category to finish the Leadville Trail 100 — on his fourth try, in 28 hours 55 minutes. He lost both legs at age four to meningococcemia, a rare bacterial infection with grim survival odds. For years he...


Sep 7, 2026

Phil Gore holds the World Best Backyard record with 119 yards (495.87 miles). In an effort to see what he could actually do, he set up a project targeting yards/hours. Meg Eckert may be the most underrated ultramarathon athlete in the game right now. She is currently on pace to break her own women’s 6-day...