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OpenAthlete

Features

Everything you need to train and coach endurance sports

The week of an endurance athlete is a loop: plan it, build the sessions, run them with your watch, look at what happened, see where your form is going, talk it over with your coach. OpenAthlete covers each step, and all of it is free.

  • Every feature free
  • Open source, AGPL-3.0
  • Self-hostable

01

Training calendar

Month, week and season views on one drag-and-drop calendar. Draw training blocks across weeks, set races as A, B or C, and see planned against done for every session.

  • Copy, shift and undo whole weeks
  • Illness, injury and travel periods that move sessions
  • A private feed for Google, Apple or Outlook Calendar
Training calendar
Training calendar

02 · 03

Workout builder and watch sync

Warm-up, repeats, recoveries, targets in pace, heart rate, power or % of VMA and FTP. Planned workouts go to Garmin, Suunto and COROS. Activities come in from those three, plus Polar and Strava.

Threshold · 5 × 4'

1:05 · run · est. load 86

On your Suunto
0:001:05
  • Garmin
  • COROS
  • Suunto
  • Polar
  • Strava

04 · 05

Training load and analysis

Every derived number comes with a note on what it means and where it stops being reliable.

How training load works

Fitness, fatigue, form

CTL, ATL and TSB from heart-rate TRIMP, projected over your planned sessions.

Fitness (CTL) 64Fatigue (ATL) 51Form (TSB) +15
Race day

Graded against the plan

Each step next to its target: on, close or off. "4 of 5 work steps on target."

Intervals and climbs found for you

Laps by plan step, watch lap, detected interval, climb (up to HC) or every N km.

Pace with the conditions removed

Grade-adjusted pace, and seconds gained or lost to slope, heat, altitude and wind.

Records you can trust

400 m to 100 km, power by duration, best of each year. Exclude a GPS glitch in one click.

Capacities

Critical speed, critical power and critical swim speed from what you actually did, with race-time ranges.

Aerobic decoupling

Pace or power against heart rate, first half against second.

Statistics and year in review

Volume, intensity distribution, durability, recovery trends. Compare periods, export CSV.

06

Coach and club tools

A team overview with compliance, volume and form for each athlete. Alerts when someone reports pain, goes quiet or leaves a message unread. Plan on any athlete's calendar, comment on sessions, chat one to one or in groups.

  • 5 athletes free, unlimited with Supporter at €50 a year
  • Several coaches can follow the same athlete
  • Clubs can self-host with single sign-on and invite-only signups
app.openathlete.org
Coach and club tools

Mobile apps and data export

Mobile

The web app is built for the phone and installs on your home screen. Native iPhone and Android apps are in testing.

Mobile
Mobile

Your data leaves with you

Download everything in one JSON file: profile, workouts, activities, metrics, messages. Delete your account and it is all erased, connections to your watch brands included.

Open source and self-hosting

Everything else

The small things that make a week easier

Calendar feed

Planned sessions in Google, Apple or Outlook.

Life periods

Illness, injury, travel: sessions move after.

Recording corrections

Remove HR or power spikes, crop, smooth altitude. Undo any time.

Weather on the route

Temperature, humidity and wind every 500 m.

Record exclusions

Suspect efforts flagged; exclude one or a whole activity.

Training paces

Jack Daniels paces from your best effort.

70 metric types

Sleep, HRV, weight, Hooper index, entered or synced.

Shoes and bikes

Distance per pair, default gear per sport.

File import

FIT, GPX, TCX, several at once.

Activity Import API

Other apps push activities over OAuth 2.1.

Data export

Everything in one JSON file.

Real account deletion

Erases your data and revokes watch connections.

5 languages

English, French, Italian, Spanish, Brazilian Portuguese.

Single sign-on

OpenID Connect on self-hosted instances; open, invite-only or closed signups.

Search everything

Cmd + K for athletes, activities and pages.

Free calculators

VMA, race predictor, heart-rate zones.

All of it, free, from today

No trial and no feature tier. Create an account, connect your watch, and plan next week.

Free forever. No credit card.