Sonoma Fall Classic
Oct 17Healdsburg, CA100 mi, 50 mi +1
Also a marathon, 122 mi from 2026 Humboldt Redwoods Marathon, Half Marathon, 5K, registration open
MarathonHalf Marathon5KRegistration open
2026 Humboldt Redwoods Marathon, Half Marathon, 5K
Weott, California2,205 spots
- Entry from
- $60
- Days to go
- 5
At a glance
- Date
- Oct 11, 2026
- Location
- Weott, California
- Distances
- Marathon, Half Marathon, 5K
- Registration
- Registration open until Oct 11, 2026, via runsignup.com
- Official site
- redwoodsmarathon.com
- Listed from
- RunSignUp
- Last checked
- Oct 5, 2026
Plan this race for free
Aid stations, cutoffs and pacing in one plan, with the timeline your crew follows. Crew invites and race-day updates come with a Race Pass.
Build my planAbout this race
We'll forgive you if you have trouble concentrating on the road ahead of you while running The Humboldt Redwoods Marathon, half or 5K. After all, you'll probably be looking up at the old-growth redwood trees which tower over the course! This race is in Humboldt Redwoods State Park and the Half Marathon follows the second half of the iconic Avenue of the Giants Marathon course.
All courses are USATF Certified. The Marathon is a Boston qualifier. The race starts and finishes at the Dyerville Bridge.
Key dates
Registration opens
Oct 30, 2025
Tier 1 ends
Jun 1, 2026
Tier 2 ends
Aug 1, 2026
Tier 3 ends
Oct 8, 2026
Registration closes
Oct 11, 2026
Race day
Oct 11, 2026
Tier 4 ends
Oct 11, 2026
Pricing
Marathon
Tier 3, then $160 from Oct 9, 2026
$145
1/2 Marathon
Tier 3, then $150 from Oct 9, 2026
$125
5K Run
Tier 3, then $60 from Oct 9, 2026
$60
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Registration openings and major changes, like a new date or a cancellation.
Entry transfers
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Race planning
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