Sonoma Fall Classic

OCT

17

2026

Experience the Sonoma Fall Classic in Healdsburg wine country where ultrarunning tradition meets festival fun. Choose marathon, Lake Sonoma 50 Mile, ultramarathon and relay options and celebrate trails, community and harvest.

Sat 17 Oct 2026

Healdsburg, California

Website Registration

100 miles 50 miles 26 miles

Always double-check with the organizer's website! This page may contain affiliate links.

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.

100 mi

100 Mile Sufferfest

100 mi

100 Mile Relay

50 mi

Lake Sonoma 50 Mile

50 mi

50 Mile Relay

26 mi

Sonoma Trail Marathon