As the sun ascends on New Year's Day, January 1st, 2027, you find yourself at Lake Chabot in Castro Valley. This scenic location offers runners a breathtaking setting for your next race adventure. Choose from three distances: the invigorating 5K, the challenging 10K, or the ambitious half marathon. For those who wish to embrace the spirit of New Year's Eve, participate in our Brazen New Year’s Eve event and then kick off 2027 with a highly sought-after New YearMega Medal. This unique medal is awarded exclusively to runners who complete both races—New Year’s Eve and January 1st—in consecutive years. If you're up for an even greater challenge, run the half marathon on December 31st and then complete it again on January 1st of the following year. The accomplishment will not only be a testament to your endurance but also a conversation starter among friends: "It took me two years to finish that marathon!" Lake Chabot's trails offer diverse terrain, from gentle slopes to scenic overlooks, providing an unforgettable runner experience. Whether you're looking for a quick 5K or a more extended run through the half marathon, Lake Chabot promises a memorable journey amidst its natural beauty. Join us at this exciting event and be part of a community that celebrates perseverance and achievement in every step taken on these trails.
Races Offered
10K
Jan 01, 2027
straighten
Distance —
10km
terrain
Type —
Others,
Running
timer
07:30
sell
$84.45
5K
Jan 01, 2027
straighten
Distance —
5km
terrain
Type —
Others,
Running
timer
07:30
sell
$74.84
HIKER DIVISION
Jan 01, 2027
straighten
Distance —
21km
terrain
Type —
Others,
Running
timer
07:30
sell
95
Half Marathon
Jan 01, 2027
straighten
Distance —
21km
terrain
Type —
Others,
Running
timer
07:30
sell
$103.66
Remote Runner
Jan 01, 2027
straighten
Distance —
Remote Runner
terrain
Type —
Others,
Running
timer
07:30
sell
$60.96
Weather History
These values represent the 3-year monthly averages for January in Castro Valley.
thermostatTemperature
6.2° / 13.8°
wb_sunnyFeels like
3.0° / 11.4°
light_mode
Avg sunshine hours
6h 53m
water_drop
Avg rainfall
5.2 mm
ac_unit
Avg snowfall
—
air
Avg wind speed
9.5 km/h (Light breeze)
opacity
Sweat loss rate
Low
terrain
Course conditions
Firm and slightly soft
sunny
Max UV Index
Low (2.0)
humidity_mid
Humidity
77.5%
wb_twilight
Sunrise
08:20
nightlight
Sunset
18:14
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.
