24 Hours of Riverside
About this race
The 24 Hours of Riverside is a 24 Hour Mountain Bike Race taking place Memorial Day Weekend 2025 at Riverside State Park in Spokane WA. But there's so much more! It will be a weekend of riding and camping and fun that you will never forget! Race starts at High Noon on Saturday. There will be food and beverage options on-site at different times throughout weekend. Camping on-site as well. And don't forget the Kid's Bike Parade Saturday Night! So much fun in 24 hours, you'll be sad it's only 24 hours!
Pick your distance
Mountain biking
Solo
Age breakdown for Solo Divison: Male 19 & Under, 20-29, 30-39, 40-49, 50-59, and 60 & Over. Female 29 & Under, 30-39, 40-49, 50 & Over. Non-Binary 1-99. Registration Includes: T-shirt, Saturday food truck dinner of choice, midnight baked potato bar, pancake breakfast, post race lunch, chip timing with live results and tracking. Porta Potties on site, water on-site, charging stations for lights/phones, and whatever else we can think of between now and Memorial Day Weekend! Your Race Entry does not include camping.
Solo Single Speed
Registration Includes: T-shirt, Saturday food truck dinner of choice, midnight baked potato bar, pancake breakfast, post race lunch, chip timing with live results and tracking. Porta Potties on site, water on-site, charging stations for lights/phones, and whatever else we can think of between now and Memorial Day Weekend! **Your Race Entry does not include camping.
2 Person Male
Registration Includes: T-shirt, Saturday food truck dinner of choice, midnight baked potato bar, pancake breakfast, post race lunch, chip timing with live results and tracking. Porta Potties on site, water on-site, charging stations for lights/phones, and whatever else we can think of between now and Memorial Day Weekend! **Your Race Entry does not include camping.
2 Person Female
Registration Includes: T-shirt, Saturday food truck dinner of choice, midnight baked potato bar, pancake breakfast, post race lunch, chip timing with live results and tracking. Porta Potties on site, water on-site, charging stations for lights/phones, and whatever else we can think of between now and Memorial Day Weekend! **Your Race Entry does not include camping.
2 Person Mixed
Registration Includes: T-shirt, Saturday food truck dinner of choice, midnight baked potato bar, pancake breakfast, post race lunch, chip timing with live results and tracking. Porta Potties on site, water on-site, charging stations for lights/phones, and whatever else we can think of between now and Memorial Day Weekend! **Your Race Entry does not include camping.
4 Person Male
Registration Includes: T-shirt, Saturday food truck dinner of choice, midnight baked potato bar, pancake breakfast, post race lunch, chip timing with live results and tracking. Porta Potties on site, water on-site, charging stations for lights/phones, and whatever else we can think of between now and Memorial Day Weekend! **Your Race Entry does not include camping, which will be charged seperately by Washington State Parks. How that will happen, TBD.**
4 Person Female
Registration Includes: T-shirt, Saturday food truck dinner of choice, midnight baked potato bar, pancake breakfast, post race lunch, chip timing with live results and tracking. Porta Potties on site, water on-site, charging stations for lights/phones, and whatever else we can think of between now and Memorial Day Weekend! **Your Race Entry does not include camping.
4 Person Mixed
Registration Includes: T-shirt, Saturday food truck dinner of choice, midnight baked potato bar, pancake breakfast, post race lunch, chip timing with live results and tracking. Porta Potties on site, water on-site, charging stations for lights/phones, and whatever else we can think of between now and Memorial Day Weekend! **Your Race Entry does not include camping.
5 Person Open 75-199 (Combined Ages)
Registration Includes: T-shirt, Saturday food truck dinner of choice, midnight baked potato bar, pancake breakfast, post race lunch, chip timing with live results and tracking. Porta Potties on site, water on-site, charging stations for lights/phones, and whatever else we can think of between now and Memorial Day Weekend! **Your Race Entry does not include camping.
5 Person Open 200-249 (Combined Ages)
Registration Includes: T-shirt, Saturday food truck dinner of choice, midnight baked potato bar, pancake breakfast, post race lunch, chip timing with live results and tracking. Porta Potties on site, water on-site, charging stations for lights/phones, and whatever else we can think of between now and Memorial Day Weekend! **Your Race Entry does not include camping.
5 Person Open 250 & Up (Combined Ages)
Registration Includes: T-shirt, Saturday food truck dinner of choice, midnight baked potato bar, pancake breakfast, post race lunch, chip timing with live results and tracking. Porta Potties on site, water on-site, charging stations for lights/phones, and whatever else we can think of between now and Memorial Day Weekend! **Your Race Entry does not include camping.
5 Person Junior (18 & Under, Open)
Registration Includes: T-shirt, Saturday food truck dinner of choice, midnight baked potato bar, pancake breakfast, post race lunch, chip timing with live results and tracking. Porta Potties on site, water on-site, charging stations for lights/phones, and whatever else we can think of between now and Memorial Day Weekend! **Your Race Entry does not include camping.
10 Person Open
Registration Includes: T-shirt, Saturday food truck dinner of choice, midnight baked potato bar, pancake breakfast, post race lunch, chip timing with live results and tracking. Porta Potties on site, water on-site, charging stations for lights/phones, and whatever else we can think of between now and Memorial Day Weekend! **Your Race Entry does not include camping.
10 Person Police, Fire, Military, Ski Patrol/Search & Rescue (Open)
Registration Includes: T-shirt, Saturday food truck dinner of choice, midnight baked potato bar, pancake breakfast, post race lunch, chip timing with live results and tracking. Porta Potties on site, water on-site, charging stations for lights/phones, and whatever else we can think of between now and Memorial Day Weekend! **Your Race Entry does not include camping.
Typical race-day weather
Based on 6 years of Open-Meteo archive data for this event's race dates in Spokane, plus the 3 days either side.
The sun rises at 4:57 AM and sets at 8:36 PM local time (PDT) in Spokane on May 29, 2027 — 15h 38m of daylight.
Course
No course map published yet.
The organizer hasn't released a route for this event, and we don't publish guesses. If you're the organizer, send us a GPX file and we'll draw the profile.
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Where this page comes from. Race details were last updated on . We re-check listings regularly and again in the week before race day.
- Entries, prices, waves and inclusions — the event's official registration page
- Temperature and humidity — Copernicus ERA5 reanalysis via Open-Meteo (CC BY 4.0)
- Elevation and terrain relief — Copernicus DEM GLO-90, ESA (CC BY 4.0)
- Comparisons and counts — Race Discovery calendar, 51 Spokane events
Spotted something wrong? Tell us and we'll fix it.