Sombrero Marathon
Running along gentle rolling hills on the Santa Clarita CA paseos & bike path. USATF Cert #CA23032TEB a Boston Qualifier
featured events
Cinco de Mayo
May 3, 2026
/
Portland
Oliver Triathlon
Jun 6, 2026
/
Oliver
The Presidio Half Marathon, 10K, 5K
Jun 21, 2026
/
San Francisco
Sign up for our Free Newsletter — The most impactful training advice and expertly curated race suggestions to help you race further.
Training Plans
Looking for training programs for Half Marathon to Ultramarathon?
Training Plans →
Friends of RaceCenter
Become a Friend of RaceCenter / Racefurther and directly fund our ability to bring you the latest in event listings, race recommendations, training advice, and training programs.
Support Us →