SPASM Lake Chabot Trail Run

Races Offered

Coastal Testing

Apr 24, 2027

straighten

Distance — 2 Miles

terrain

Type — Running

timer

08:20

sell

$0.00

Kid's Run (6yo & younger, 50yd dash) - Free!

Apr 24, 2027

straighten

Distance — 50 Yards

terrain

Type — Running

timer

08:20

sell

$0.00

30K

Apr 24, 2027

straighten

Distance — 17.9 Miles

terrain

Type — Running

timer

08:30

sell

$75.00

50K

Apr 24, 2027

straighten

Distance — 31 Miles

terrain

Type — Running

timer

08:30

sell

$90.00

Half Marathon

Apr 24, 2027

straighten

Distance — 13.1 Miles

terrain

Type — Running

timer

08:30

sell

$70.00

Marathon

Apr 24, 2027

straighten

Distance — 26.2 Miles

terrain

Type — Running

timer

08:30

sell

$80.00

8K

Apr 24, 2027

straighten

Distance — 5 Miles

terrain

Type — Running

timer

08:45

sell

$60.00

Weather History

These values represent the 3-year monthly averages for April in Castro Valley.

thermostat Temperature

8.4° / 16.7°

wb_sunny Feels like

6.1° / 14.0°

light_mode Avg sunshine hours

11h 17m

water_drop Avg rainfall

0.8 mm

ac_unit Avg snowfall

—

air Avg wind speed

10.3 km/h (Light breeze)

opacity Sweat loss rate

Low

terrain Course conditions

Firm and slightly soft

sunny Max UV Index

Moderate (5.0)

humidity_mid Humidity

78.8%

wb_twilight Sunrise

06:31

nightlight Sunset

19:44

About Castro Valley

Learn more about the host city, Castro Valley.

Castro Valley is an unincorporated town in the inner East Bay in the Bay Area of California. It has a population of about 60,000 and is located north of Hayward and east of San Leandro and south of the Oakland hills. Since it is unincorporated, Castro Valley is governed by the County of Alameda, which has its county seat in Oakland.