Transform your body and mind with our comprehensive 90-day triathlon fitness challenge. Build unbreakable mental toughness while achieving peak physical condition through structured swimming, cycling, running, and strength training.
See what's possible when you commit to excellence for 90 days
Starting the journey with determination
Transformed body, unbreakable mind
“TRI90 didn't just change my body - it changed my entire mindset. I'm stronger, more confident, and ready for any challenge.”
- Alex, TRI90 Finisher
More than a workout program - it's a complete lifestyle transformation that builds champions
While 75 Hard builds mental toughness, TRI90 takes it further. You'll develop the complete athlete mindset through structured triathlon training, optimized nutrition, and recovery protocols that elite athletes use.
This isn't about burning out in 90 days. TRI90 creates sustainable habits that will keep you strong, healthy, and mentally resilient for decades to come.
Every aspect is grounded in sports science and proven training methodologies used by professional triathletes and endurance coaches worldwide.
Build an engine that lasts
Unbreakable mindset
Functional power
Optimize adaptation
Simple rules, but not easy. That's what makes champions.
Download and use the Transition app to follow your personalized training plan. Complete every workout as prescribed by your AI coach. Swimming, biking, running, and strength training - no exceptions, no modifications.
Stick to the personalized nutrition recommendations provided in your Transition app. Fuel like an athlete, eat for performance and longevity. No deviations from your prescribed meal timing and macros.
Zero alcohol consumption. This eliminates empty calories, improves sleep quality, and maximizes recovery between training sessions.
Same time, same pose, same location every day. Visual accountability that shows your transformation over 90 days.
90 consecutive days. Miss a day? Start over. This builds the mental fortitude that separates champions from everyone else.
Post daily updates using #TRI90. Inspire others and stay accountable to the community.
A proven system that transforms ordinary people into extraordinary athletes
Choose your target race distance or fitness objective. The AI will create a personalized 90-day plan.
Follow your structured workouts across swim, bike, run, and strength. Each session builds toward your goal.
Monitor your improvement through data, photos, and performance metrics. See yourself transform.
After 90 days, you'll have the fitness, mindset, and habits of a true athlete. The challenge ends, but the champion continues.
Three disciplines that forge unbreakable mental strength
Swimming can be daunting - the water, the breathing, the technique. But that's exactly why it's powerful. Every stroke forces you out of your comfort zone. You'll conquer the primal fear of water and discover strength you never knew existed.
“The pool doesn't lie. It strips away excuses and reveals who you really are.”
Cycling demands technical skill, strategic thinking, and meticulous planning. Gear ratios, aerodynamics, nutrition timing - every detail matters. This isn't meant to be easy. The complexity builds the analytical mind of a champion.
“The bike rewards preparation and punishes shortcuts.”
After swimming and cycling, your legs are already fatigued. Now you run. This is where champions are made - when your body screams stop but your mind says go. Running off the bike teaches you that limits are just suggestions.
“The run separates the committed from the curious.”
Triathlon isn't just three sports - it's a philosophy. It teaches you that growth happens outside your comfort zone, that complexity can be mastered, and that when everything hurts, you can still choose to keep going.
This is why we chose triathlon. Not because it's easy, but because it transforms you.
This is about becoming the person you're capable of being
Build cardiovascular endurance, muscular strength, flexibility, and power in one comprehensive program.
Develop the unshakeable mindset that carries over into every area of your life.
Train for life, not just 90 days. Build habits that keep you healthy and strong for decades.
Join thousands of athletes pushing their limits and supporting each other's journey.
Every protocol is backed by sports science and used by elite endurance athletes worldwide.
No crash diets or extreme measures. Build lasting change through intelligent training.