A 140.6 is six to ten months of work. Done wrong it ruins you; done right it changes you. Your AI coach scales volume smartly, defends recovery, and rehearses every mile of race day.


Build the aerobic engine and durability that 140.6 demands — block by block, never random.
Base, build, peak, race. The AI works backward from your race date and protects every key block.
Sleep, HRV, and load tracked daily. Auto-deload before you bury yourself — every time.
Two short sessions a week and load ceilings built into your week — durability for the long block.
Inside your plan
Your plan reshapes every week based on what you actually did, how you slept, and how you felt — not a fixed PDF written months ago.
A PDF plan you wrote in January is fiction by April. Your AI coach reads what you did each week and rewrites the next — so the plan is always honest, always relevant.

The athletes who finish strong rehearse race day for weeks before it. Your plan includes long-day fueling, brick days, and progressive race-pace simulations.

Nutrition, taper, mental game, recovery — the unsexy details are where finish times happen. The app handles them so you don't have to remember.

A week with your AI coach
A mid-build week, 12–14 weeks out. Yours will look very different at base vs peak — the AI sequences it for you.
Yours will look different — the AI picks every session based on your fitness, sleep, schedule, and race date.
Every detail handled
Base, build, peak, race — locked to your race date, never fiction.
Saturday rides progress to 5–6 hours with race-pace blocks built in.
Personalized carbs, sodium, hydration — rehearsed weekly inside long sessions.
Two short sessions a week — built to hold up for 30+ weeks of training.
When load, sleep, or HRV go red, the AI pulls you back before you crack.
Taper, pacing, fueling, warm-up, mental cues — all dropped on race week.
Train for your IRONMAN
Each race plan tunes pacing to the course profile and expected conditions.
Apr 18, 2026 · The Woodlands, TX, United States
May 16, 2026 · Jacksonville, FL, United States
Jun 28, 2026 · Frankfurt, Germany
Jul 19, 2026 · Lake Placid, NY, United States
Sep 19, 2026 · Cambridge, MD, United States
Sep 27, 2026 · Chattanooga, TN, United States
Nov 7, 2026 · Panama City, FL, United States
Nov 22, 2026 · Cozumel, ROO, Mexico
Works With Your Favorite Apps & Devices
Workouts are automatically marked complete when your device syncs — no manual logging needed.
Send structured workouts directly to your Garmin, Apple Watch, or bike computer with targets and intervals built in.
Direct support for most indoor smart trainers — Transition controls resistance in real time during structured rides.
Real athletes. Real results.
"Transition has made my training simple and dynamic. With shifting schedules and weather, this system adjusts to variables and makes me better each day."
Creed Hendrickson
Triathlete
"Relatively new to triathlon but experienced with TrainingPeaks, Garmin and Strava. Transition has genuinely impressed me. The Smart Coach is good and the adaptive training seems well thought out, the app is clean and intuitive and the built in nutrition logging – especially protein tracking – is excellent."
Simon Wilkins
Triathlete
"Transition has made my training simple and dynamic. With shifting schedules and weather, this system adjusts to variables and makes me better each day."
Creed Hendrickson
Triathlete
"Relatively new to triathlon but experienced with TrainingPeaks, Garmin and Strava. Transition has genuinely impressed me. The Smart Coach is good and the adaptive training seems well thought out, the app is clean and intuitive and the built in nutrition logging – especially protein tracking – is excellent."
Simon Wilkins
Triathlete
"Transition has made my training simple and dynamic. With shifting schedules and weather, this system adjusts to variables and makes me better each day."
Creed Hendrickson
Triathlete
"Relatively new to triathlon but experienced with TrainingPeaks, Garmin and Strava. Transition has genuinely impressed me. The Smart Coach is good and the adaptive training seems well thought out, the app is clean and intuitive and the built in nutrition logging – especially protein tracking – is excellent."
Simon Wilkins
Triathlete
"Transition has made my training simple and dynamic. With shifting schedules and weather, this system adjusts to variables and makes me better each day."
Creed Hendrickson
Triathlete
"Relatively new to triathlon but experienced with TrainingPeaks, Garmin and Strava. Transition has genuinely impressed me. The Smart Coach is good and the adaptive training seems well thought out, the app is clean and intuitive and the built in nutrition logging – especially protein tracking – is excellent."
Simon Wilkins
Triathlete
"I get a full 3-sport plan that adjusts to my starting fitness and my ongoing training, provides immediate feedback on workouts, can adjust plans quickly based on my progress or schedule interruptions, and can even provide strength, flexibility, and nutrition advice. It all comes at a small price compared to a human coach."
Prescott Balch
Triathlete
"Very well crafted app for multisport athletes. The developer acts quickly on suggestions. Highly recommend."
Matteo Castagna
Triathlete
"I get a full 3-sport plan that adjusts to my starting fitness and my ongoing training, provides immediate feedback on workouts, can adjust plans quickly based on my progress or schedule interruptions, and can even provide strength, flexibility, and nutrition advice. It all comes at a small price compared to a human coach."
Prescott Balch
Triathlete
"Very well crafted app for multisport athletes. The developer acts quickly on suggestions. Highly recommend."
Matteo Castagna
Triathlete
"I get a full 3-sport plan that adjusts to my starting fitness and my ongoing training, provides immediate feedback on workouts, can adjust plans quickly based on my progress or schedule interruptions, and can even provide strength, flexibility, and nutrition advice. It all comes at a small price compared to a human coach."
Prescott Balch
Triathlete
"Very well crafted app for multisport athletes. The developer acts quickly on suggestions. Highly recommend."
Matteo Castagna
Triathlete
"I get a full 3-sport plan that adjusts to my starting fitness and my ongoing training, provides immediate feedback on workouts, can adjust plans quickly based on my progress or schedule interruptions, and can even provide strength, flexibility, and nutrition advice. It all comes at a small price compared to a human coach."
Prescott Balch
Triathlete
"Very well crafted app for multisport athletes. The developer acts quickly on suggestions. Highly recommend."
Matteo Castagna
Triathlete
"Transition has helped me improve my Ironman training more than any other method I have encountered in my triathlon journey. It is incredibly precise and personalized. I cannot recommend it enough!"
Carlos Rebelo
Triathlete
"A great option for beginners that do not want to spend $300/mo for a pro trainer but want to have a comprehensive and adaptive, structured training with basic feedback and some tips."
Luis B.
Triathlete
"Transition has helped me improve my Ironman training more than any other method I have encountered in my triathlon journey. It is incredibly precise and personalized. I cannot recommend it enough!"
Carlos Rebelo
Triathlete
"A great option for beginners that do not want to spend $300/mo for a pro trainer but want to have a comprehensive and adaptive, structured training with basic feedback and some tips."
Luis B.
Triathlete
"Transition has helped me improve my Ironman training more than any other method I have encountered in my triathlon journey. It is incredibly precise and personalized. I cannot recommend it enough!"
Carlos Rebelo
Triathlete
"A great option for beginners that do not want to spend $300/mo for a pro trainer but want to have a comprehensive and adaptive, structured training with basic feedback and some tips."
Luis B.
Triathlete
"Transition has helped me improve my Ironman training more than any other method I have encountered in my triathlon journey. It is incredibly precise and personalized. I cannot recommend it enough!"
Carlos Rebelo
Triathlete
"A great option for beginners that do not want to spend $300/mo for a pro trainer but want to have a comprehensive and adaptive, structured training with basic feedback and some tips."
Luis B.
Triathlete
Why choose Transition?
| Feature | Transition | TriDot | TrainingPeaks |
|---|---|---|---|
| AI-Powered Training | |||
| Adaptive Training Plans | Manual | ||
| AI Coach Chat | |||
| AI Video Analysis (Swim, Bike, Run) | |||
| Nutrition Tracking | |||
| Strength Training | Limited | Third-party | |
| Smart Trainer Control | |||
| Race Predictions | |||
| Garmin & Apple Watch Sync | |||
| Native Mobile App | Limited |
Pricing
Everything you need to optimize your triathlon training. No hidden fees. Cancel anytime.
Save $1,500+ per year
compared to hiring a personal coach