Get ready for a functional fitness challenge built for all abilities. 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. Cerox Iron X: Twice the grind, none of the miles. Double the reps, double the work. 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 Cerox Iron X Workout: Zone 1: 800M Row Erg Zone 2: 60 Deadlifts - 155/105 Zone 3: 800M Ski Erg Zone 4: 40 Sandbag Over 4' Bar - 100/70 Zone 5: 150M Walking Lunges - RAM 55/33 Zone 6: 400M Farmers Carry - 2x 60's/ 40's Zone 7: 60 Cal. Echo Bike Zone 8: 60 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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Race Travel Insurance
Don't forget travel insurance for September 19.
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
When is CEROX + IRON + IRON X 2026 — Frederick, CO?
CEROX + IRON + IRON X 2026 — Frederick, CO takes place on September 19, 2026. The race is held in Frederick, Colorado.
Where is CEROX + IRON + IRON X 2026 — Frederick, CO held?
CEROX + IRON + IRON X 2026 — Frederick, CO is held at 3771 Monarch Street in Frederick, Colorado.
Where can I find hotels near CEROX + IRON + IRON X 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.
