Blood Sugar Rumbler
Blood Sugar Rumbler logo

Blood Sugar Rumbler

Helena, Montana, United States View on map
Sep 12, 2026 (America/Denver local time)
Gravel biking

About this race

The Blood Sugar Rumbler takes you through some of most beautiful areas of The Lewis and Clark National Forest just North West of Helena Montana. This event supports the Montana Youth Diabetes Alliance and their summer camp scholarship fund to help kids get to summer camp. Riders will have two different ride options to choose from, either the Rumbler for 55 miles or the Bumbler for 26 miles.

 The Rumbler includes 5,000+ft of climbing within 55 miles of forest services roads and is geared towards the more advanced gravel rider. The climbs are challenging and somewhat technical yet the down hills are worth it.

 The Bumbler is 26 miles of an out and back, rolling dirt road that follows the Prickly Pear Creek through a beautiful canyon. This is a great route for anyone just looking for a fun morning out with friends. Both courses will have aid stations with water, Hammer Nutrition products and food. 

Click the link below to see the Blood Sugar Bumbler route.

https://ridewithgps.com/routes/51062595

Click the link below to see the Blood Sugar Rumbler route.

https://ridewithgps.com/routes/49794964 

Pick your distance

Gravel biking

The Blood Sugar Rumbler

The Blood Sugar Rumbler is a challenging 55 miles of forest service and double track gravel roads. You'll climb just over 5,000ft with some technical gravel to maneuver around. Yet, the downhill sections are worth every bit. There will be two aid stations equipped with snacks, water, and hammer drink mix. This route is for the trained gravel rider looking to push their limits while being safe and having fun. https://ridewithgps.com/routes/49794964

Sep 12, 2026 Ultra 9:00 AM
$40.00
Closed

The Blood Sugar Bumbler

The Blood Sugar Bumbler is a rolling 26 mile gravel route with about a 1,000ft of climbing. This is a great route for any beginner gravel rider or someone looking to simply take some friends out for a good ride. This route follows the Prickly Pear Creek with lots of beautiful pull outs to enjoy the awesome geology. This is an out and back route with one aid station at the half way point. Included here will be snacks, water, hammer drink mix, and a porta potties. https://ridewithgps.com/routes/51062595

Sep 12, 2026 Marathon 9:30 AM
$20.00
Closed

Typical race-day weather

Based on 10 years of Open-Meteo archive data for this event's race dates in Helena, plus the 3 days either side.

Temp (°C)
Minimum temperature (race-week average) 8.8° / Maximum temperature (race-week average) 23.7°
Feels Like (°C)
Minimum feels like — heat index / wind chill (race-week average) 7.1° / Maximum feels like — heat index / wind chill (race-week average) 23.6°
Peak wind (km/h)
Strongest wind of the day (race-week average)
15.5
Precip (mm)
Precipitation over the day (race-week average)
1.1mm
Humidity
Mean relative humidity (race-week average)
52.5%
Sunrise
Sunrise at the start line on September 12, 2026 (MDT)
Sunset
Sunset at the start line on September 12, 2026 (MDT)
Daylight
Hours between sunrise and sunset on race day
12h 43m

The sun rises at 7:02 AM and sets at 7:45 PM local time (MDT) in Helena on September 12, 2026 — 12h 43m 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.

Reviews

Done this event?

If you've participated in this event, share your experience with other runners

Other races near Helena

Different organizers, within 40 miles, in the next three months

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, 16 Helena events

Spotted something wrong? Tell us and we'll fix it.