Coach.
Plan.
Fuel.
Core3 builds your training plan, sets your nutrition to match, and rewrites both as your fitness and fatigue shift. One coach that actually keeps up with you.
One loop. Always running.
Connect your gear once. Core3 calibrates to your real fitness, then keeps your plan, workouts, and macros current as the data comes in.
Connect
Link Garmin, Wahoo, Zwift, or Ōura once. Every ride, run, and night of sleep shows up on its own. No manual entry, no spreadsheets.
Calibrate
Core3 reads your numbers (CTL, ATL, TSB, FTP, recovery) and builds a live picture of what you can handle today.
Adapt
Your plan, your sessions, and your macros update as the data comes in. Skip a workout, sleep badly, or peak early and Core3 adjusts around it.
A coach that learns how you train.
It builds a picture of you over time, from every ride, every check-in, and every bit of feedback you hand back to it.
- Knows your fatigue patterns, your race history, and when you actually like to train
- Reworks your schedule the moment life gets in the way
- Tells you why it made each call, not just what to do
Plans that flex around your life.
Your week never goes to plan. Core3 reshuffles the load when it falls apart, so you are not rebuilding your schedule by hand every Monday.
- Fits sessions around the time you actually have
- Moves the load when you skip a session or cut one short
- Weighs recovery now against where you need to be on race day
Fuel that fits your training blocks.
Your macros move with your load. Hard weeks get more carbs, recovery weeks lean on protein, and race week shifts into a carb load on its own.
- Tomorrow's session sets today's targets
- Carb loading built into the days before your event
- A nudge to refuel after the sessions that need it
Everything you ride, connected.
Connect the devices and apps you already use. Your data comes in on its own, no manual entry.
● More integrations on the way. Want one? Email info@coreiii.com
Training tech without the guesswork.
No badges, no fake streaks. Just the models that actually predict performance, in an app that respects your data and your time.
Real sports science
CTL, ATL, TSB, FTP, Critical Power, W′. The same load-and-fatigue models good coaches use, run on your own data and updated every day.
Your data, your call
Encrypted in transit and at rest. We don’t sell it or mine it. Export everything or delete your account in a tap, whenever you want.
Explains every call
No black box. When Core3 moves a session or changes your macros, it shows you the reasoning behind it.
Founding members first
Get in before public launch, lock in founding-member pricing for good, and help decide what we build next.
We're building the coach we always wanted for ourselves: one that's honest about your data and never leaves you guessing what to do next.
— The Core3 team
Questions & Answers.
Everything you need to know before joining the waitlist.
Core3 is an AI performance coach that brings your training, nutrition, and recovery into one place. It learns from your workouts, meals, sleep, and readiness, then adjusts your plan so you're always training at the right intensity.
Core3 works with Garmin, Wahoo, Zwift, and Oura out of the box, and we're adding more based on what people ask for. If your device syncs with any of these, your data comes in automatically.
It reads your fitness numbers (CTL, ATL, TSB) alongside what you eat and how you recover. From there it works out what you can handle right now and adjusts your upcoming sessions, macro targets, and rest days to match.
We're starting with cycling because the data is richest there: power meters, structured workouts, the lot. The engine itself isn't tied to one sport, and running and triathlon support are next on the roadmap.
Join from the early waitlist and you keep a discounted rate for good, even as we add features and the standard price goes up.
Your data is encrypted at rest and in transit, and we only use it to coach you. We never sell it, and you can export or delete it whenever you want.
Be first
in line.
Core3 isn’t public yet. Grab your spot and lock in founding-member pricing before we open the doors.