CEROX + IRON 2026 — Frederick, CO

Date
July 25, 2026
Location
Frederick, CO
Venue
3771 Monarch Street
Start Time
11:00 AM
Entry Fee
$45.00 – $55.00
Events
Cerox Individual, Cerox Teams of 2, Cerox Iron Individual, Cerox Iron Teams of 2
Register NowRegistration Open

CEROX + IRON is held in Frederick, Colorado on July 25, 2026, starting at 11:00 AM. The event takes place at 3771 Monarch Street. Entry fees range from $45 to $55. As an endurance-focused competition, it attracts athletes looking for a challenging summer race experience in the Colorado Front Range area. The mid-morning start time allows for flexible travel and pre-race preparation. Frederick's location provides convenient access from the Denver metropolitan region for competitors and support crews. Whether you're based locally or traveling in from out of state, the reasonable entry price point and established venue make this a straightforward addition to a summer racing schedule.

From the Race Organizer
Get ready for a functional fitness challenge built for all abilities. Cerox is back! This time you can choose between Cerox or Cerox Iron. You’ll take on 8 fitness zones designed to test your endurance, strength, and grit. Choose your level of challenge: Cerox: The event will feature 8 fitness zones plus running. Cerox Iron: The same zones as the classic Cerox event, but without the running. You can sign up as an individual or with a partner team. Teams can divide the zone work however they choose. Cerox Workout: 400M Run Zone 1: 400M Row Erg 400M Run Zone 2: 30 Deadlifts - 155/105 400M Run Zone 3: 400M Ski Erg 400M Run Zone 4: 20 Sandbag Over 4' Bar - 100/70 400M Run Zone 5: 75M Walking Lunges - RAM 55/33 400M Run Zone 6: 200M Farmers Carry - 2x 60's/ 40's 400M Run Zone 7: 30 Cal. Echo Bike 400M Run Zone 8: 30 Burpees to Plate Cerox Iron Workout: Zone 1: 400M Row Erg Zone 2: 30 Deadlifts - 155/105 Zone 3: 400M Ski Erg Zone 4: 20 Sandbag Over 4' Bar - 100/70 Zone 5: 75M Walking Lunges - RAM 55/33 Zone 6: 200M Farmers Carry - 2x 60's/ 40's Zone 7: 30 Cal. Echo Bike Zone 8: 30 Burpees to Plate

Hotels Near This Race

Find accommodation close to the start line in Frederick, CO. Sorted by distance from the race venue. Book early — race weekend hotels fill fast.

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CEROX + IRON 2026 — Frederick, CO

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Race Travel Insurance

Don't forget travel insurance for July 25.

You've trained for months and booked a trip to Frederick, CO. A pre-race injury, a delayed flight, or a family emergency can derail the whole thing. Travel insurance can help cover your race entry fee, hotel, and flights if you can't make it, and may cover medical costs if something goes wrong on the course. Plans typically only run 5-7% of your total trip cost — and running events are covered under standard plans with no additional coverage needed.

  • Trip cancellation up to 100% of prepaid costs
  • Running events covered under standard plans — no add-ons needed
  • Trip interruption up to 150% of non-refundable costs
  • Emergency medical up to $250,000
  • Cancel For Any Reason add-on available
  • 24/7 real-time support
Get a Quote — Faye Travel Insurance

Affiliate links — we may earn a commission at no cost to you. Coverage terms vary by state and plan. Review policy details before purchase.

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Frequently Asked Questions

When is CEROX + IRON 2026 — Frederick, CO?

CEROX + IRON 2026 — Frederick, CO takes place on July 25, 2026. The race is held in Frederick, Colorado.

Where is CEROX + IRON 2026 — Frederick, CO held?

CEROX + IRON 2026 — Frederick, CO is held at 3771 Monarch Street in Frederick, Colorado.

Where can I find hotels near CEROX + IRON 2026 — Frederick, CO?

RaceHotelFinder shows hotels sorted by distance from the race venue in Frederick. Use the map or list view on this page to compare options and book race weekend accommodation.