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Sonoma Fall Classic

Healdsburg, United States • 17 Oct 2026

Sonoma Fall Classic

The Sonoma Fall Classic is a trail running festival held in Northern California wine country during harvest in Healdsburg, CA. The event brings together several legacy Lake Sonoma races with additional distances and relay options on nearby trails. The organizer paired the original Lake Sonoma 50 Mile with a new 100 Mile, a trail marathon, and relay formats to offer multiple course options on the same weekend.

The event statement notes an intent to protect and preserve local community and volunteer culture while maintaining the authentic spirit of the Lake Sonoma races. The weekend blends old-school ultrarunning tradition with a festival-style atmosphere focused on trail running.

Key event details:

  • 100 Mile Sufferfest
  • 100 Mile Relay
  • 50 Mile Relay
  • Lake Sonoma 50 Mile
  • Sonoma Trail Marathon

Location details list 3227 Stewarts Point-Skaggs Springs Road, Healdsburg, CA. Registration for the event closes on Mon, Oct 12 at 11:59PM PT. The event date is Saturday, Oct 17, 2026. Visit the organization's website for the most recent information.

United States California Healdsburg

Race information

Website Registration
100 mi
100 Mile Relay
100 mi
100 Mile Sufferfest
50 mi
50 Mile Relay
50 mi
Lake Sonoma 50 Mile
26 mi
Sonoma Trail Marathon
Visit the organization's website for the most recent information.
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