Winter Urban
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Event overview
Winter Urban is an urban endurance event in Tulsa, OK on Dec 13-14, 2025. The start and finish are at RunnersWorld Tulsa, 3920 S. Peoria, Tulsa. Distances offered are:
- 26.2 km (marathon)
- 100K
- 100 miles
The overall cutoff to finish any distance is 34 hours.
Course and navigation
The core course is a 20-mile loop that will be run five times for the long distances. The marathon course is the 20-mile loop plus a 3-mile out-and-back. The course is not marked on the ground; each participant receives a map and turn-by-turn directions and must follow them. Terrain is generally flat to gently rolling, and sidewalks are available for most of the route. Parts of the route run next to or on streets with vehicular and pedestrian traffic.
Support, rules and mandatory items
Aid is self-supported: runners may use stores, delis, park drinking fountains, and crew supplies. Pacers are allowed after the first lap. Crews may assist with food and drink but may not move a runner forward. Music devices are strongly discouraged for safety. Littering is prohibited. Mandatory items to carry include a cell phone, the provided direction sheet, roughly $25 in cash or a card, and at least one water bottle or hydration pack (minimum 20 oz). If a runner drops on course they must notify the event staff before leaving the course. Visit the organization's website for the most recent information.
