AI triathlon coach

An AI triathlon coach that balances swim, bike, and run.

One adaptive plan across all three disciplines plus strength — built around your race date and benchmarks (CSS, FTP, threshold pace), and tuned after every session.

Join the waitlistHow it works

Three sports, three apps, no one watching the whole picture

Most triathletes end up juggling a swim log, a cycling app, and a running tracker — none of which knows what the others did. Your bike app can't see that yesterday's run left your legs cooked, and your run app has no idea you swam 3km this morning. Balancing fatigue across three disciplines is exactly the part that's hard to do alone.

Gritty is an AI triathlon coach appbuilt around a coach named Grit. Grit holds swim, bike, run, and supporting strength in one periodized plan, prescribes each session in your own benchmarks (CSS, FTP, threshold pace), and rebalances the week after every session you log. You approve every change — Grit never reshuffles your plan silently. And it's yours to steer: ask Grit for guidance any time, and track every swim, ride, and run in one place.

How Grit coaches your triathlon

One plan across all three disciplines

Swim, bike, and run live in a single program with supporting strength and mobility, so the week's total load actually adds up instead of three apps each thinking they own your time.

Prescribed in your own benchmarks

Sessions are set in FTP on the bike, CSS in the pool, and threshold pace on the run — the numbers you already train by — and recalibrate as you progress.

Periodized to your race

Base, build, peak, and taper across all three sports, sized to your race date, with brick sessions and key workouts placed where they belong.

Reads every session's data

Bike power and HR, swim splits, run pace — Grit reviews each one against the plan and rebalances upcoming load when something runs hot or easy.

Manages fatigue across sports

A hard ride changes what tomorrow's run should be. Grit sees the whole week, so a big day in one discipline adjusts the others.

Record or import any discipline

Open-water swim and ride GPS in-app, or import rides with power via Apple Health, Health Connect, or GPX/TCX/FIT files exported from Garmin Connect, Wahoo, and others.

You stay in control

Race postponed, picked up a cold, or want a bigger week? Tell Grit and it rebalances all three disciplines for you. Every change is a proposal you approve before it touches your plan.
Chat with Grit drafting a triathlon training block, ending in a program proposal card.
Build your plan
Tell Grit your race and benchmarks. It drafts all three disciplines.
Full-screen triathlon program review showing phases, weekly structure across swim, bike, and run.
See the whole block
The full multi-sport plan as one card — edit any session before saving.
A session review from Grit summarising distance, splits, and HR zones with quick-reply chips.
Review every session
Each swim, ride, and run reviewed against the plan.

One coach for the whole triathlon

Swim · bike · run · strength

All three disciplines plus supporting work in a single adaptive program.

FTP, CSS & threshold pace

Sessions prescribed in the benchmarks you already train by.

Power & HR imports

Pull in rides with power and cadence via Apple Health, Health Connect, or files exported from Garmin Connect, Wahoo, and others.

Race-date periodization

Base → build → peak → taper across all three sports, with brick sessions.

Whole-week balance

Grit adapts each discipline based on the load from the others.

Free to start

Full coach, a complete triathlon program, recording, and imports cost nothing.

AI triathlon coach — FAQ

What triathlon distances does it plan for?
Sprint, Olympic, and long-course (70.3 / Ironman). You give Grit the race and date, and it sizes a periodized block — base, build, peak, taper — across all three disciplines to fit the weeks you have.
Does it really handle all three disciplines in one plan?
Yes — that's the core idea. Instead of stitching together a swim app, a bike app, and a run app, Grit holds swim, bike, run, plus supporting strength and mobility in a single program and balances the load across your week.
Does it use FTP, CSS, and threshold pace?
Yes. Grit asks for your discipline benchmarks during intake — FTP on the bike, CSS in the pool, threshold pace on the run — and prescribes each session in those terms, then recalibrates as your sessions come in.
Can I import workouts from my bike computer or Garmin?
Yes. Record open-water swims and rides in-app, or import from Apple Health and Health Connect (Wahoo, Coros, Suunto, Wear OS) — or export a GPX/TCX/FIT file from Garmin Connect or your bike computer and upload it, including cycling power and cadence — so Grit reviews each session in context.
Do I still need a human coach?
Grit covers the planning and day-to-day adjustment a coach does — periodization, balancing the three sports, reviewing sessions, and adapting load — at a fraction of the cost. It's a coach, not a medical professional, and every change is a proposal you approve.
Is it free?
Yes. The coach, a full triathlon program, recording, and imports are free. Premium (€7.99/month or €69/year) adds unlimited chat, a review on every session, parallel programs, and deeper analytics.

Get one coach for swim, bike, and run

Join the waitlist and be among the first to train with Grit when Gritty Fitness launches on iOS and Android.

Join the waitlist