Winter Urban

DEC
13-14
2025
Winter Urban in Tulsa is an urban ultramarathon offering marathon, 100K and 100 mile options on a 20 mile loop repeated five times. Self supported with map navigation and local stops, the race rewards smart fueling and street smarts.
13-14 Dec 2025
Marathon (26.2 Miles) 100k 100 Miles

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Event overview

Winter Urban is an urban long-distance running event in Tulsa, OK, with the start and finish at RunnersWorld Tulsa, 3920 S. Peoria. The organizer changed the course to a 20-mile loop that will be repeated five times. The event offers these distances:

  • 26.2 miles
  • 100K
  • 100 miles

There is a 34-hour overall cutoff for finishing the event.

Course, support and rules

The course is not marked on the streets; participants receive a map and turn-by-turn directions to carry during the run. Terrain is generally flat to gently rolling, and sidewalks are available for most of the route. Much of the route runs next to or on streets with possible heavy vehicle and pedestrian traffic. Aid is self-supported: runners may use stores, delis, restaurants, park drinking fountains, or crew-supplied food and drink. RunnersWorld will be open during normal business hours but may be unattended overnight.

Pacers are allowed after a runner’s first lap. Crews may assist with food and supplies but may not move a runner forward or provide rides, which can result in disqualification. Mandatory items to carry include a cell phone, the provided direction sheet, cash or card (about $25 recommended), and at least one water bottle or hydration pack (minimum 20 oz). Music listening devices are strongly discouraged for safety. Littering is prohibited. Packet pick-up and race number assignment occur the morning of the event. Visit the organization's website for the most recent information.

100 mi
100 Miles
100 km
100k
26 mi
Marathon (26.2 Miles)

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