
Saturday, November 14, 2026
Fremont, California
The course starts in the scenic Quarry Lakes Regional Recreation area and follows the popular Alameda Creek Trail up to the mouth of Niles Canyon. All courses are flat and fast!
The Half Marathon (CA19047RS) course is USATF certified.
USATF Certified Course
CA19047RS · Expires 2029
Certified Course Name
Quarry Lakes Half Marathon
Net Drop
-0.14
m/km
Separation
0.2%
start to finish
This course is relatively flat with minimal net elevation change. Loop course — start and finish are close together.
View USATF Course Map (PDF)Race Day
Saturday, November 14, 2026 · 11/14/2026 08:30
Start Location
Quarry Lakes Regional Recreation Area (Ensenada Pavilion), Fremont, CA 94536
Course
Loop
Also Offers
Giveaway
T-Shirt
Registration
Register online — $70
Race Website
Official race information
2:12:02
10:05/mi pace
1:26:24
6:36/mi pace
144
31% female · 69% male
6 states
Avg age: 41
Finish Time Distribution (2025)
1:53:40
Top 25%
2:32:34
Top 75%
☀
Avg High
64°F
☽
Avg Low
48°F
☂
Precip
0.15 in
🍃
Wind
8.3 mph
The course starts in the scenic Quarry Lakes Regional Recreation area and follows the popular Alameda Creek Trail up to the mouth of Niles Canyon. All courses are flat and fast!
The Half Marathon (CA19047RS) course is USATF certified.
USATF Certified Course
CA19047RS · Expires 2029
Certified Course Name
Quarry Lakes Half Marathon
Net Drop
-0.14
m/km
Separation
0.2%
start to finish
This course is relatively flat with minimal net elevation change. Loop course — start and finish are close together.
View USATF Course Map (PDF)Race Day
Saturday, November 14, 2026 · 11/14/2026 08:30
Start Location
Quarry Lakes Regional Recreation Area (Ensenada Pavilion), Fremont, CA 94536
Course
Loop
Also Offers
Giveaway
T-Shirt
Registration
Register online — $70
Race Website
Official race information
2:12:02
10:05/mi pace
1:26:24
6:36/mi pace
144
31% female · 69% male
6 states
Avg age: 41
Finish Time Distribution (2025)
1:53:40
Top 25%
2:32:34
Top 75%