2025 - CEROX IRON + IRON X
2025 distances
Running
Cerox Iron Individual
The event will feature 8 fitness zones no running, designed to test your endurance, strength, and grit.
Cerox Iron Teams of 2
Cerox Iron X Individual
Cerox Iron X Teams of 2
Race date Weather
Conditions on November 15, 2025 — historical Open-Meteo data.
Course
Route map and elevation profile
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 Frederick
Different organizers, within 40 miles, in the next three months
Cerox + Iron + Iron X
The Pilgrimage Run 2026
PRA Miner Gold Rush
Big Waves Family 5K run/walk Presented by Brumate
🏃 Plan Your Next Race in Frederick
Find upcoming events by distance:
- Frederick Running Calendar 2026 5 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, 5 Frederick events
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