Course map, elevation profile & surface
Fly the course
Follow the route over 3D terrain, mile by mile.
Race-day light
For a 11:15 finish (an estimate) · starting 7:00 AM Oct 17. Dark means the sun below civil twilight.
Climbs
16 climbs · 6,745 ft totalbiggest firstElevation gain, measured two ways
| Source | Gain | vs lidar |
|---|---|---|
| Course file (GPX) | 11,798ft | +17% |
| USGS lidar, 1 m | 10,071ft | reference |
They differ because a GPS file picks up noise on every wiggle and often takes its heights from a coarse terrain model, while lidar maps the ground itself to about a metre. We sampled this route every 98 ft against USGS 3DEP and counted each rise of 10 ft or more, on Oct 23, 2026. The planner still uses the course file.
Aid stations as published on the course file
| Aid station | Mile | km |
|---|---|---|
| Start / Finish | 0.0 | 0.0 |
Badge colours match the markers on the map above — always confirm locations and cutoffs with the race organizer.
Race director? Check this course and correct anything that’s off, and it carries a ✓ verified by the race badge everywhere it appears, including the free map embed for your own site. Claim your course.
Ran this course and something’s off — an aid station moved, a reroute, a wrong number? Report it and we’ll chase it down; fixes land for every runner (and count toward the race’s verified badge).
Conditions typical race-day weather for Oct 17 at the start
Typical = the median of 2016–2025 for Oct 17 ±3 days at the start line; a wet day has 1 mm of rain or more. Historical weather from Open-Meteo.
Race almanac 1 year of this race
Past editions
On race day it reached 91°F at the start, with a low of 57°.
| Year | Start °F | High point °F | Rain | Wind | Heat index |
|---|---|---|---|---|---|
| 2026 Oct 17 | 91°/57° | 85°/51° | dry | 8mph | 86° |
race-day weather from the Open-Meteo historical archive (ERA5) at the start line and the course high point (1,745 ft).
Reviews what runners who have been there say
No reviews yet — be the first to run it and tell other runners what to expect.
About this course
Sonoma Fall Classic — 2026 covers 50.3 mi (81.0 km) with 11,798 ft of elevation gain through California, United States. That is about 234 ft per mile of climbing, and 11,801 ft of descent. The course tops out at 1,759 ft and bottoms out at 226 ft. The surface is 46% trail, 21% gravel and 14% paved. The profile has 16 sustained climbs; the biggest is the climb from mi 0.1, +1,099 ft over 2.4 mi at 8.5% on average (steepest stretch 29%). Race day is October 17, 2026, starting at 7:00 AM; the sun rises at 7:24 AM and sets at 6:32 PM. Typical race-day weather at the start: a high of 80°F and a low of 53°F, with a 17% chance of a wet day. The interactive map above shows the full route with its elevation profile and aid stations, built from the course's GPS file.
Load the course in the TrailGoat Run Planner for grade-adjusted pacing, climb-by-climb splits, hourly weather and a full hydration & fueling plan — free, no account needed.
Race director? — one line of HTML, always up to date.
Course history
- Jul 27, 2026Added to the catalog
Races like this one close in distance, climbing, terrain, altitude, weather and season
More race courses
- Western States 100 — 2027100.2 mi · California, United States
- That's No Moon Trail Races 30K — 202618.6 mi · California, United States
- Napa Wilderness Trail Runs 50K — 202732.5 mi · California, United States
- Rim Rock 50 Mile Trail Challenge 50 mile solo — 202749.4 mi · California, United States
- San Diego 100 100 Miler Solo — 2027100.1 mi · California, United States
- Noble Canyon 50K/15K — 20269.9 mi · California, United States
Not seeing the race you came for? — most are live within a day.