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Half marathons in East Bay (2026-27)

Updated October 17, 2026

7 half marathons are coming up in East Bay in the next 90 days; the next is Oakland Hills Trail Run on Saturday, October 24 in Oakland. 20 half marathons are listed in East Bay for the next 12 months.

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• Sat24Oct

  Oakland Hills Trail Run

  Sat Oct 24 · 8:30 AM · Oakland · East Bay

  10KHalf marathon22.7 milesTrail

  Reg. closed
• Sat7Nov

  Lake Chabot Trail Run

  Sat Nov 7 · 8:20 AM · Castro Valley · East Bay

  2 miles5K4.8 milesHalf marathon30KMarathonTrail

  from $25Goes up Nov 1
• Sat14Nov

  ZombieRunner Quarry Lakes

  Sat Nov 14 · 8:05 AM · Fremont · East Bay

  2 miles5K10KHalf marathonTrail

  from $25Goes up Nov 8
• Sun15Nov

  Berkeley Half Marathon

  Sun Nov 15 · 7:30 AM · Berkeley · East Bay

  5K10KHalf marathon

  see site
• Sat28Nov

  Quarry Turkey

  Sat Nov 28 · 8:00 AM · Fremont · East Bay

  5K10KHalf marathon

  from $67Goes up Nov 9
• Fri1Jan

  Brazen New Year's Day

  Fri Jan 1 · 8:30 AM · Castro Valley · East Bay

  5K10KHalf marathonTrail

  from $73Goes up Dec 5
• Fri1Jan

  Brazen New Year's Eve

  Fri Jan 1 · 8:30 AM · Castro Valley · East Bay

  5K10KHalf marathonTrail

  from $68Goes up Oct 25
• Sat30Jan

  Coyote Hills

  Sat Jan 30 · 7:30 AM · Fremont · East Bay

  5K10KHalf marathon

  from $63Goes up Nov 9
• Sat20Mar

  Redwood (Spring) Trail Run

  Sat Mar 20 · 7:50 AM · Oakland · East Bay

  2 miles5 milesHalf marathon18.3 milesMarathon50KTrail

  from $30Goes up Mar 14
• Sun21Mar

  Oakland Marathon

  Sun Mar 21 · 7:00 AM · Oakland · East Bay

  5K10KHalf marathonMarathon

  see site
• Sat17Apr

  Badger Cove

  Sat Apr 17 · 7:30 AM · Livermore · East Bay

  5K10KHalf marathon

  from $35Reg. closed
• Sat17Apr

  Spasm Lake Chabot Trail Run

  Sat Apr 17 · 8:20 AM · Castro Valley · East Bay

  2 miles5 milesHalf marathon17.9 milesMarathon50KTrail

  from $60Goes up Apr 11
• Sat8May

  Grizzly Peak Trail Run

  Sat May 8 · 7:50 AM · Berkeley · East Bay

  2 miles10KHalf marathon30KMarathon50KTrail

  from $60Goes up May 2
• Sat15May

  Wildcat

  Sat May 15 · 7:30 AM · El Sobrante · East Bay

  5K10KHalf marathon

  from $45Reg. closed
• Sun23May

  Diablo Trail Run

  Sun May 23 · 7:50 AM · Clayton · East Bay

  2 miles4 miles10 milesHalf marathonMarathon30.4 milesTrail

  from $50Goes up May 17
• Sat5Jun

  Cinderella Trail Run

  Sat Jun 5 · 7:50 AM · Oakland · East Bay

  2 miles8KHalf marathon30KMarathon50KTrail

  from $60Goes up May 30
• Sun6Jun

  Lake Chabot Trail Challenge (Half Marathon & 5K)

  Sun Jun 6 · 8:00 AM · Castro Valley · East Bay

  5KHalf marathonTrail

  from $40Goes up Jun 6
• Sat10Jul

  Beer City Half™ Alameda

  Sat Jul 10 · 8:30 AM · Alameda · East Bay

  5K10KHalf marathon

  from $50Reg. closed
• Sat24Jul

  Bad Bass

  Sat Jul 24 · 7:30 AM · Castro Valley · East Bay

  5K10KHalf marathonTrail

  from $63
• Sat14Aug

  Redwood (Summer) Trail Run

  Sat Aug 14 · 7:50 AM · Oakland · East Bay

  2 miles5 milesHalf marathon30KMarathon50KTrail

  from $60Goes up Aug 8

Quick answers

How many half marathons are in East Bay in the next 3 months?

7 half marathons are listed in East Bay between October 17 and January 15. The next is Oakland Hills Trail Run on Saturday, October 24 in Oakland.

What is the cheapest half marathon in East Bay right now?

Lake Chabot Trail Run on November 7 has the lowest listed entry fee in the next 90 days: $25. Prices are before the registration platform's processing fee.

When does the next early-bird price end for half marathons in East Bay?

Brazen New Year's Eve: the 5K goes from $68 to $73 after October 25. 11 more of these half marathons publish a later price increase.

Are there half marathons in East Bay this weekend?

None are listed for October 17 to October 18. The next is Oakland Hills Trail Run on Saturday, October 24 in Oakland.