Running Fence Run: 5K/10K/Half Marathon/Full Marathon

On September 12, 2026, runners return to the stunning Sonoma County hills to celebrate two milestone anniversaries:

• The 50th anniversary of Christo & Jeanne-Claude's Running Fence art installation  —  September 10-24, 1976
• The 2,516th anniversary of the Battle of Marathon — September 12, 490 BC

Choose your challenge — 5K, 10K, Half Marathon, or full 26.2 — and run through the same beautiful landscape where the Running Fence once stood.