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Half Marathon Calendar near Alum Rock 2026-2027

Monthly updates for Alum Rock

Get new running races (and updates) in your inbox every month.

Explore the top half marathons near Alum Rock for 2026-2027! We've gathered 29 exciting races in the area. Check out our detailed list below to find your next local race.

January 2026
Jan
31
Sa

Coyote Hills Run

Trail Run 5 km 10 km Half Marathon
February 2026
Feb
7
Sa

Mt. Umunhum Trail Conquest - Winter

Trail Run 5 km 7 mi ... 26 mi 50 km
Feb
21
Sa

Redtail Ridge

Trail Run 5 km 10 km ... 30 km 50 km
March 2026
Mar
1
Su

Livermore Valley Half Marathon

5 km Half Marathon
Mar
7
Sa

Skyline Ridge Trail Run

Trail Run 10 km Half Marathon 50 km
Mar
22
Su

Horseshoe Lake Half Marathon

Trail Run 13 mi
Mar
28
Sa

Western Pacific Marathon

Trail Run 5 km 10 km Half Marathon
April 2026
Apr
11
Sa

Lake Chabot Trail Run

Trail Run 8 km Half Marathon ... Marathon 50 km
Apr
18
Sa

Badger Cove Half Marathon

Trail Run 5 km 10 km Half Marathon
Apr
18
Sa

Horseshoe Lake Trail Run

Trail Run 5 mi 13 mi ... 26 mi 50 km
Apr
18
Sa

Woodside Crossover

Trail Run 10 km Half Marathon 35 km 50 km
Apr
19
Su

Santa Cruz Westside Half Marathon

5 km 10 km 13 mi
May 2026
May
10
Su

Trailquake

Trail Run 5 km 10 km Half Marathon
May
30
Sa

San Jose Half Marathon

8 km Half Marathon 408 km
May
30
Sa

Beer City Half San Jose

5 km 10 km Half Marathon
June 2026
Jun
7
Su

Lake Chabot Trail Challenge

Trail Run 3 mi 13 mi
Jun
28
Su

The Rock The Loch Half Marathon

Trail Run 5 km 10 km Half Marathon
July 2026
Jul
11
Sa

San Lorenzo River Trail Run

Trail Run 10 km Half Marathon ... Marathon 50 km
Jul
18
Sa

Bad Bass - Castro Valley

5 km 10 km Half Marathon
August 2026
Aug
15
Sa

Beer City Half Marathon

5 km 10 km Half Marathon