Spring Classic Duathlon & Half Marathon
Always double-check with the organizer's website! This page may contain affiliate links.
Event overview
The Spring Classic Duathlon, Half Marathon, 10K and 5K takes place on April 26, 2026 in Vancouver, Washington. The event is based at Vancouver Lake Regional Park (6801 NW Lower River Rd). Distances and event formats include:
- Duathlon: 5K run / 12.91-mile bike / 5K run
- Half Marathon
- 10K
- 5K
- Virtual 5K, Virtual 10K, Virtual Half Marathon, Virtual Duathlon
Parking is included with registration fees. The event benefits Ainsley’s Angels.
Course, rules and logistics
The courses are described as flat and fast along the pancake flats near Vancouver Lake and the Columbia River. The bike route is paved with minimal elevation gain and has no railroad tracks. The duathlon follows USAT rules: drafting is not allowed, helmets are required, and music is prohibited on the bike segment. Music on running segments is restricted to a single earbud; use of two earbuds may lead to disqualification. Water and Gatorade stations are provided at run turnaround points and roughly every 2 miles on the half, 10K and 5K courses. Porta-potties are provided at the start/finish area and at designated points on the run courses. Awards are presented to overall top finishers, masters, age-group places, Clydesdale and Athena divisions, and duathlon relay teams. On-site bike mechanical support will be available. Visit the organization's website for the most recent information.
