Meet Our 2025 Premier & Professional Ambassadors!

Don’t miss this year’s Philadelphia Marathon Weekend featuring elite athletes Lauren Fleshman, Aliphine Tuliamuk, Jared Ward and the Mayor of Running himself, Bart Yasso.

Lauren Fleshman

Lauren Fleshman is one of the most decorated American distance runners of all time, having won five NCAA championships at Stanford and two national championships as a professional.

Her book, "Good for a Girl: A Woman Running in a Man’s World", was an instant NYT Bestseller and was named William Hill Sportsbook of the Year in 2023. Lauren’s writing has appeared in The New York Times, Time and Runner’s World.

Aliphine Tuliamuk

Aliphine Tuliamuk is a Kenyan-American professional marathon athlete and winner of the 2020 US Olympic Marathon Trials. A ten-time USATF Champion, Aliphine has a personal best marathon time of 2:24:37 at the 2023 Boston Marathon. (Photo credit Paul Ward)

Jared Ward

Jared Ward is a six time All-American at BYU, three time USA National Champion, a 2016 Olympian (6th place in marathon in Rio) and a Dietz and Watson Philadelphia Half Marathon finisher!

Bart Yasso

Bart Yasso, known as the Mayor of Running, is the now retired Runner's World Chief Running Officer. Yasso, the inventor of the Yasso 800s, a marathon-training schedule used by thousands around the world. He is one of the few people to have completed races on all seven continents from the Antarctica marathon to the Mt. Kilimanjaro marathon.