2021 - Frost or Fog 10-Mile, 1/4 Marathon & 5K
2021 distances
Running
Standard 10-Mile
The 10-Mile course follows the 1/4 Marathon route but continues past Bear Hole for approximately 1.75 miles before you turn around to join your friends on the way back!
Standard 1/4 Marathon
The 1/4 Marathon (6.55 miles) course is the same as the 5K course until the Shooting Range. 1/4 Marathon runners will pass the Shooting Range and continue back to Bear Hole. Runners turn around at Bear Hole and will come back along the road, pass the Shooting Range, and turn left on 5 Mile Way. Runners will finish at the far end of the footbridge.
Standard 5K
The 5K course begins at 5 Mile on the levee and continues onto Wildwood Trail to the Shooting Range. Runners/walkers will turn around at the Shooting Range and come back along the bike path turning left onto 5 Mile Way. Runners/walkers will finish at the far end of the footbridge.
Race Anywhere 5k
Race Anywhere
Race Anywhere 1/4 Marathon
Race Anywhere
Race Anywhere 10 Mile
Race Anywhere
Race-day weather
Conditions on January 23, 2021 — historical Open-Meteo data.
The sun rises at 7:21 AM and sets at 5:16 PM local time (PST) in Chico on January 23, 2021 — 9h 54m 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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2021 results — Frost or Fog 10-Mile, 1/4 Marathon & 5K
137 finishers across 6 distances · leading places in the Standard 10-Mile
| Place | Name | Time | Pace |
|---|---|---|---|
| 1 | Katie Crane | 1:08:54 | 6:53 /mi |
| 2 | Sarah Johnston | 1:16:15 | 7:38 /mi |
| 3 | Bob Brown | 1:18:45 | 7:53 /mi |
| 4 | Thomas Parker | 1:19:27 | 7:57 /mi |
| 5 | Russell Shapiro | 1:22:27 | 8:15 /mi |
Every finisher is on the results page, filterable by distance, gender and age group.
Other races near Chico
Different organizers, within 40 miles, in the next three months
Free New Year's Day 5k by Chico Running Club
Frost or Fog 10-Mile, 1/4 Marathon & 5K
Phoenix 5k/10k
G.o.l.o.w. Turkey Trot
🏃 Plan Your Next Race in Chico
Find upcoming events by distance:
- Chico 5K Races 7 races
- 10K Run Events in Chico 3 races
- Chico Running Calendar 2026 10 races
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, 13 Chico events
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