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Half marathons in Pasadena & San Gabriel Valley (2026-27)

Updated October 17, 2026

2 half marathons are coming up in Pasadena & San Gabriel Valley in the next 90 days; the next is Pasadena Trail Half & 10k/5k on Sunday, October 18 in Pasadena. 3 half marathons are listed in Pasadena & San Gabriel Valley for the next 12 months.

All LACentral LA (4)Westside & Beaches (32)South Bay & Long Beach (53)Pasadena & San Gabriel Valley (3)San Fernando Valley (11)Orange County (9)

• Sun18Oct

  Pasadena Trail Half & 10k/5k

  Sun Oct 18 · 7:30 AM · Pasadena · Pasadena & San Gabriel Valley

  5K10KHalf marathonTrail

  Reg. closed
• Sun20Dec

  Holiday Half Marathon & 5K

  Sun Dec 20 · 7:00 AM · Pomona · Pasadena & San Gabriel Valley

  5KHalf marathon

  see site
• Sun17Jan

  Rose Bowl Half Marathon & 5K

  Sun Jan 17 · Pasadena · Pasadena & San Gabriel Valley

  5KHalf marathon

  see site

Quick answers

How many half marathons are in Pasadena & San Gabriel Valley in the next 3 months?

2 half marathons are listed in Pasadena & San Gabriel Valley between October 17 and January 15. The next is Pasadena Trail Half & 10k/5k on Sunday, October 18 in Pasadena.

When does the next early-bird price end for half marathons in Pasadena & San Gabriel Valley?

None of these half marathons publish an upcoming price increase. Check each race page for its full price schedule.

Are there half marathons in Pasadena & San Gabriel Valley this weekend?

Yes, 1: Pasadena Trail Half & 10k/5k (Sun).