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CEROX IRON + IRON X

📍 Frederick, CO
Date
Saturday, May 9, 2026
Distance
Various
Region
Frederick
Est. Participants
Not specified
Get ready for a functional fitness challenge built for all abilities. Cerox is back, and this time, there’s no running. Just pure work. You’ll take on 8 fitness zones designed to test your endurance, strength, and grit. Choose your level of challenge: 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. Estimated Wave Time: 11 AM: Iron X Individual 12 PM: Iron Individual 1 PM: Iron X Teams 2 PM: Iron Teams Get your tickets now and be part of the action on November 15th! 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: