Sonoma Fall Classic

October 17, 2026

Lake Sonoma Recreation Area · Geyserville, United States

About

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.

Step 2

Pick your distance

Everything below adapts to your choice

Start

Lake Sonoma Recreation Area

Start time

05:00

Entry fee

$435

Weather

Mild 10-24°C

Aid stations

  • Station 1

  • Station 2

  • Station 3

  • Station 4

  • Station 5

  • Station 6

  • Station 7

  • Station 8

  • Station 9

  • Station 10

  • Station 11

  • Station 12

  • Station 13

  • Station 14

  • Station 15

  • Station 16

  • Station 17

  • Station 18

  • Station 19

  • Station 20

  • Station 21

Register on ultrasignup.com

Pack this

  • Headlamp plus spare batteries for 100 and 50 mile night sections
  • Hydration vest with two 500ml soft flasks and electrolyte tabs
  • Gels or chews for roughly 60-90g carbs per hour, plus real food
  • Light wind shell and long sleeves for cool 10°C mornings and nights
  • Collapsible cup, whistle, and anti-chafe balm

What you should know

  • The 100 mile course climbs about 7,600m, so walk the steep climbs early to save your legs.
  • Afternoon temperatures can reach 24°C on exposed ridges, so drink more between aid stations.
  • Check the official race info for cutoffs, mandatory gear, and drop-bag rules before race day.
  • Relay teams should plan handoff spots and how each runner gets there ahead of time.
  • Watch for poison oak, ticks, and rattlesnakes on the trails, and stay on marked routes.
Based on 1 source

The information shown here is based on the most recent listing we could find, and may change. Always confirm details on the event's official site before registering.

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