09/12/2026
We're excited to announce that C51 is around the corner, and this time we're introducing some exciting new updates!
In this F45 Challenge, we're introducing tracks: Power (Build Strength), Lean (Improve Body Composition), and Athlete (High Performance) — giving you a clear path based on your goal, while still training together in the same class.
Power: build strength, lift heavier, and track measurable progress week over week.
Lean: reduce body fat, preserve muscle, and build habits that stick.
Athlete: improve speed, power, and overall performance.
Once you register and pick your track, your experience is tailored: weekly training tips, broadcast channels (Instagram), Reddit community threads, and nutritional advice shared throughout the 45 days. You'll also have access to an updated Challenge Dashboard to track your progress, with an Apple Health integration.
The Challenge runs October 5 – November 18.
In addition to the exciting updates in our C51 Challenge, we're offering fantastic studio prizes for the winners in each track! The winner in each track will have their participation cost covered for a HYROX race (HYROX Single, 1/2 of HYROX Doubles, or 1/4 of HYROX Relay). Plus, they'll receive a HYROX 12-Class Package to be used in 2027. Get ready to push your limits and aim for victory!
Note: Each track requires a minimum of 15 active participants to qualify for the studio prize.
Participation in the C51 Challenge is free as long as you have a LionHeart Heart Rate Monitor. The LionHeart will be essential for tracking your Heart Rate Zone, ensuring you're in the optimal zone for your specific track. Each track—Power, Lean, and Athlete—has targeted Heart Rate Zones tailored for Resistance, Hybrid, and Cardio classes to maximize your results.
Don't miss out on this opportunity to challenge yourself and achieve your fitness goals! F45 TRAINING APP C51 REGISTRATION OPENS on September 21.
