Welcome to
your start line.
Sign in to put every session, goal and training partner in the same place.
Build your first week.
Start with your available hours and a goal. You can change both later.
Make this week count.
A plan for the life you actually have.
Your sessions
Keep it moving.
A useful week starts with the next session.
Your goal
Set a race to get started.
One session at a time.
Recovery and sensible changes count too.
Goals worth showing up for.
Add a race, then reshape your plan around it.
Race goals
Your data, together.
Connect your own accounts. Strava activity stays in your private view.
Strava
See completed activities beside your plan.
Checking connection…Apple Health + Watch
Available in the native iPhone and Apple Watch apps after installation.
Garmin
Garmin has temporarily paused new API approvals; direct sync is not active yet.
Apple Watch and Health workouts
These appear after the native iPhone app syncs them to your 3TRI account.
Recent Strava activities
Find your training people.
Invite your cofounder or a friend, then compare compatible sessions.
Training buddies
Sessions you could share
These are suggestions. Agree on time and place with your buddy before changing either plan.