Lake Sonoma MTB: Grasshopper 2026
- Date
- October 24, 2026
- Location
- Geyserville, California
- Organized by
- Grasshopper Adventure Series
Distances and entry
- Junior (U19) — $65.83
- Open — $130.66
About Lake Sonoma MTB: Grasshopper 2026
Ride Details
The Lake Sonoma MTB Grasshopper is a thrilling mountain bike race that challenges riders with some of the most technical, flowy singletrack in Northern California. Set in the rugged landscape around Lake Sonoma, this 28.5-mile course features steep climbs, fast descents, and over 5,351 ft of climbing—with no easy way out. The race starts "en masse" from the bottom of the dam and climbs 2.25 miles before hitting the single track. The course enters the South Lake Trailhead and traverses the lake for 20 miles before hitting Bummer Peak Climb. From here you climb over 1,000 ft over the next 3 miles followed by a traverse around Bummer Peak on your way to North Slope and Boar Scat. At mile 26 you cross over Rock Pile Rd and then descend 700 ft. (with a few short climbs) to the finish at Dry Creek Parking area.
Route
The classic Hopper course is back!
Categories
Grasshoppers have always been about adventure, exploration and pushing your limits. Come to race, or come to adventure and explore. Riders may choose their category and licenses are not required. All Hopper routes are open and riders must obey all traffic laws and rules. See RULES OF ENGAGEMENT
Podium
Top 3 in all categories
Cash prize for Pro TBD depending on the number of riders registered.
Male: Pro, U18, 19-29, 30-39, 40-49, 50-59, 60+, Single Speed, E-Bike
Female: Pro, U18, 19-29, 30-39, 40-49, 50-59, 60+, Single Speed, E-Bike
Non-Binary
Aid Stations
Aid Station: (Location TBD).
We’ll have water, Skratch hydration, nutrition, Maurten gels and snacks for you.
Bottle Drop: If you wish to leave a bottle with your name clearly labeled on it you may leave it with the
Mike's Bikes van at the start. (No hand-ups) .
ALL riders must fill their own bottles. Individual support is not allowed at the feed zone. No attacking in the feed zone area or you will be DQd and excommunicated from the church of bike.
Camping:
Camping allowed Friday and Saturday. We have sites #1 and #2 at the Warm Springs Picnic Area. See MAP here. There are restrooms available Friday.
Multi-Participant Discount
Carts with three or more people get you 5% off per rider. No code needed.
Watcha' Get
A crazy hard, super fun adventure with a bunch of your new and old cycling buddies.
Feed zones with Skratch hydration and Maurten. Presented by Mike's Bikes.
Awesome prizes at the finish from our generous sponsors.
Event timing and results.
Hot coffee and fresh baked pastries from Black Oak Coffee Roasters the morning of each event.
Delicious lunch, cold Guayaki and Best Day Brewing beer at the finish.
Podiums for Top 3 All Categories
Cash prizes for Top 3 Pro M/F Overall.
Emergency Medical Support en route.
Unforgettable stories of adventure.
Free event photos
For more information visit the event page on our website or the FAQ on the 'About Us" page
