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Sonoma Fall Classic

Healdsburg, United States • 17 Oct 2026

Event overview

The Sonoma Fall Classic takes place on Saturday, October 17, 2026, in Healdsburg, California. The event is held in Northern California wine country during harvest and pairs the original Lake Sonoma 50 Mile with additional race options and relays. Organizers state the event aims to protect and preserve the community and volunteer culture of the legacy Lake Sonoma races while combining ultrarunning tradition with a festival-style atmosphere.

Race distances

  • 100 miles - 100 Mile Sufferfest
  • 100 miles - 100 Mile Relay
  • 50 miles - Lake Sonoma 50 Mile
  • 50 miles - 50 Mile Relay
  • ~42 km - Sonoma Trail Marathon

Location and registration

The event base is listed at 3227 Stewarts Point-Skaggs Springs Road, Healdsburg, CA. Registration opens on January 1, 2026. The event program includes multiple individual and team options across ultramarathon and marathon distances. 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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