Race Discovery
Lake Chabot Trail Challenge (Half Marathon & 5K)
Lake Chabot Trail Challenge (Half Marathon & 5K) logo

2026 - Lake Chabot Trail Challenge (Half Marathon & 5K)

Castro Valley, California, United States View on map
Jun 07, 2026 (America/Los_Angeles local time)
Running

2026 distances

Trail running

Half Marathon

On-line registration closes on June 6, 2026 at 11:59pm.

Jun 07, 2026 Half-Marathon 8:00 AM
$70.00
Closed

5K Run

On-line registration closes on June 6, 2026 at 11:59pm.

Jun 07, 2026 5K 8:30 AM
$45.00
Closed

Race-day weather

Conditions on June 7, 2026 — historical Open-Meteo data.

Temp (°C)
Minimum temperature (recorded on race day) 9.6° / Maximum temperature (recorded on race day) 19.6°
Feels Like (°C)
Minimum feels like — heat index / wind chill (recorded on race day) 7.0° / Maximum feels like — heat index / wind chill (recorded on race day) 19.6°
Peak wind (km/h)
Strongest wind of the day (recorded on race day)
18.8
Precip (mm)
Precipitation over the day (recorded on race day)
0.0mm
Humidity
Mean relative humidity (recorded on race day)
68.0%
Sunrise
Sunrise at the start line on June 7, 2026 (PDT)
Sunset
Sunset at the start line on June 7, 2026 (PDT)
Daylight
Hours between sunrise and sunset on race day
14h 41m

The sun rises at 5:46 AM and sets at 8:28 PM local time (PDT) in Castro Valley on June 7, 2026 — 14h 41m of daylight.

Course

No course map published yet.

The organizer hasn't released a route for this event, and we don't publish guesses. If you're the organizer, send us a GPX file and we'll draw the profile.

Reviews

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2026 results — Lake Chabot Trail Challenge (Half Marathon & 5K)

385 finishers across 2 distances · leading places in the Half Marathon

View all results
Leading finishers of the 2026 Lake Chabot Trail Challenge (Half Marathon & 5K)
Place Name Time Pace
1 Shane Kozicki 1:35:02 7:15 /mi
2 Rajan Kaushek 1:35:17 7:16 /mi
3 Henry Lin 1:36:31 7:22 /mi
4 Kyle McCall 1:40:14 7:39 /mi
5 JOEL TRIPLETT 1:40:23 7:40 /mi

Every finisher is on the results page, filterable by distance, gender and age group.

Other races near Castro Valley

Different organizers, within 40 miles, in the next three months

🏃 Plan Your Next Race in Castro Valley

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Where this page comes from. Race details were last updated on . We re-check listings regularly and again in the week before race day.

  • Entries, prices, waves and inclusions — the event's official registration page
  • Temperature and humidity — Copernicus ERA5 reanalysis via Open-Meteo (CC BY 4.0)
  • Elevation and terrain relief — Copernicus DEM GLO-90, ESA (CC BY 4.0)
  • Comparisons and counts — Race Discovery calendar, 7 Castro Valley events

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