
Sonoma Fall Classic

- Date
- October 2027 · date TBA
- Distances
- 4 distances
- Time limit
- 36 Hours
- Elevation gain
- +25,058 feet
- Entry from
- $95
What happens when the "original" Lake Sonoma 50 Mile moves to the Fall and joins forces with a 100 miler, trail marathon & relays? Come find out at the inaugural Sonoma Fall Classic - now presented by Aravaipa Running in partnership with Healdsburg Running Company & Tropical John Medinger.
Come experience one of the most relentless and beautiful ultras on the West Coast featuring miles upon miles of singletrack with majestic views of Lake Sonoma, nestled in the beauty of wine country during harvest season. With free camping, festive vibes, impeccable race atmosphere & more, come be part of the inaugural Sonoma Fall Classic!
Good to know
100 Mile, Marathon & Relay Start: Lake Sonoma Recreation Area 3227 Stewarts Point-Skaggs Springs Rd Geyserville, CA 95441
50 Mile Start: The Ranch at Lake Sonoma 100 Lake Sonoma Overlook Rd Geyserville, CA 95441
Half Marathon Start: Liberty Glen Liberty Glen Campground Geyserville, CA 95441
Finish (All Races): Lake Sonoma Recreation Area 3227 Stewarts Point-Skaggs Springs Rd Geyserville, CA 95441
5:00 AM - 100 Mile Sufferfest Start 5:00 AM - 50 Mile Relay Start 5:00 AM - 100 Mile Relay Start 6:30 AM - Lake Sonoma 50 Mile Start 8:00 AM - Sonoma Trail Marathon Start 10:00 AM- Half Marathon Start
Thursday - October 15 12PM-6PM Friday - October 16 12PM-7PM Healdsburg Running Company 333 Center St Healdsburg, CA 95448
Pick your distance
The numbers for each course, straight from the race page. Compare them side by side below.
- Distance
- 100.5 Miles
- Time Limit
- 36 Hours
- Total Estimated Elevation Gain
- +25,058 feet
- Max Elevation
- 1,754' feet
- Min Elevation
- 233' feet
Compare the distances
| 100 Mile | 50 Mile | Marathon | Half Marathon | 4-Person Relays | |
|---|---|---|---|---|---|
| Distance | 100.5 Miles | 51.5 Miles | 26.8 Miles | 100 or 50 Miles - Four Runners per Team | – |
| Time Limit | 36 Hours | 16 Hours | 11 Hours | 10 Hours | TBA |
| Total Estimated Elevation Gain | +25,058 feet | +10,612 feet | +5,903 feet | +2,262 feet | +25,058 ft or +12,529 ft |
| Max Elevation | 1,754' feet | 1,163 feet | 1,093' feet | 1,324' feet | – |
| Min Elevation | 233' feet | 232' feet | 231' feet | 223' feet | – |
Course & location
Lake Sonoma, CA
Course map Entry fees
Prices go up as race day gets closer; register early.
| Until 3/31 | Until 8/31 | Until 10/12 | Race Week | |
|---|---|---|---|---|
| 100 Mile | $375 | $405 | $435 | $465 |
| 50 Mile | $195 | $215 | $235 | $255 |
| Marathon | $145 | $160 | $175 | $190 |
| Half Marathon | $95 | $115 | $135 | |
| 100 Mile Relay | $380 | $400 | $420 | $440 |
| 50 Mile Relay | $280 | $300 | $320 | $340 |
Prices don't include tax or registration-platform fees.


