Williams Route 66 Marathon

Registration is open through hakuapp on a first-come, first-served basis until the race fills. It does sell out, so registering early is the safest move. Signing up early also locks in your preferred apparel sizing.

Yes, the course is USATF-certified and qualifies for Boston. A small percentage of the field hits the standard each year, so it is achievable but not a given.

The time limit is 6.5 hours, which gives most runners a comfortable window to finish.

It is a loop course that runs through downtown Tulsa and the surrounding city streets. The route rolls throughout with no major single climb, but the cumulative elevation across the back half rewards conservative early pacing.

Late November in Tulsa typically brings a cold start, often in the upper 30s, with afternoon highs around the upper 50s. Plan for a throwaway layer at the start. Conditions are generally good for fast racing if you dress appropriately.

Recent editions have seen around 800 marathon finishers. It is a mid-size race, which means organized logistics and solid crowd support without the density of a major city marathon.

The race starts in downtown Tulsa near the Art Deco district. Tulsa International Airport is about 10 miles away, roughly 15 to 20 minutes from downtown hotels near the start.