2025 - 10K On The Bay
2025 distances
Running
1 Mile Run or Walk
5K (3.1 Miles) Run or Walk
10K (6.2 miles) Run
Race-day weather
Conditions on September 13, 2025 — historical Open-Meteo data.
The sun rises at 6:49 AM and sets at 7:19 PM local time (PDT) in Hayward on September 13, 2025 — 12h 29m 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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Other races near Hayward
Different organizers, within 40 miles, in the next three months
Lake Chabot Trail Run
Brazen New Year's Day
Brazen New Year's Eve
Reindeer Run 5k Fun Run
🏃 Plan Your Next Race in Hayward
Find upcoming events by distance:
- Hayward 5K Races 5 races
- Hayward Running Calendar 2026 6 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, 6 Hayward events
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