2025 Hark the Herald Half Marathon & 10K

2025 Hark the Herald Half Marathon & 10K - Race Roster

The 10K (slightly long at ~6.5 miles) is a single loop. The Half Marathon does the loop twice. The event is limited to 400 participants so don't wait too long ...

2025 Hark the Herald Half Marathon & 10K - Running in Tiburon

Sign up for 2025 Hark the Herald Half Marathon & 10K on Sat 13th Dec 2025. Learn how to enter, read reviews, get exclusive discounts, see photos, ...

Hark the Herald Half Marathon & 10K, 13 Dec, 2025 (Sat)

About the event. You'll fall in love with San Francisco all over again as you follow this hilly loop trail circumnavigating Angel Island. Along the way ...