CEROX IRON + IRON X
Date and time
Friday, August 21, 2026 · 7:00 PM
Location
3771 Monarch Street, Frederick, CO
Date and time
Friday, August 21, 2026 · 7:00 PM
Location
3771 Monarch Street, Frederick, CO
Date and time
Friday, August 21, 2026 · 7:00 PM
Location
3771 Monarch Street, Frederick, CO
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.
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