Chomik

Free adaptive training plans for cycling and running, with a browser workout player and Intervals.icu sync

Innovation: a rules-based plan that shows the reason for every session and is built backwards from an event you pick in a calendar of gran fondos, ultras and marathons

Indie

Visit chomik.ccSaved in this browser only

About

Chomik is a free web platform that writes adaptive training plans for cyclists and runners. Pick a goal from its events calendar (gran fondos, gravel, MTB, ultracycling and marathons) or enter your own, add smaller B and C events on the way, and the plan works backwards through base, build, peak and taper. After every session it reads your training load (CTL, ATL and TSB from TSS), how you said it felt and the days you have free, then re-plans the coming days; skipped or off-plan rides are absorbed, and each session says why it is there. The plan comes from a rules-based engine, not AI, and FTP (or critical speed for runners) is estimated from your best efforts, for you to accept or ignore. Intervals.icu is the main bridge: Chomik imports up to a year of history from it and writes your plan to its calendar, from where workouts reach Garmin, Wahoo, COROS or Zwift; sessions can also be downloaded as FIT or TCX files. For indoor rides, a workout player in the browser holds a smart trainer to the target power over Bluetooth (FTMS) or ANT+ FE-C with a USB stick, showing power, cadence and heart rate, and includes an FTP test. Without a power meter, rides are prescribed by heart rate and perceived effort. Everything is free, with no trial, subscription or ads; donations are optional and unlock nothing. Made in Barcelona.

Features

  • ERG mode
  • Workouts

Sends rides to

  • intervals.icu

Other sports

  • Running

In these lists

Sources

Something wrong or out of date? Suggest a correction.

More training apps

  • Croissant RideFree open-source browser app for ERG workouts on a Bluetooth FTMS trainer, with 3D worlds and a .FIT file with a lap per step
  • Structured RideFree browser workout editor that converts between .zwo, .erg, .mrc and .fit, with a Bike Sim to ride the workouts on a smart trainer
  • TwinRideFree, ad-free app for riding with your club: ERG workouts, ghosts and shared journeys, without a 3D world
  • SweetWattMac app that runs ERG workouts from the MacBook notch while your show plays full screen
  • GradientLight Android app for ERG workouts, heart-rate rides and real climbs on a smart trainer, with no account and no internet access
  • parat.io workoutsERG workouts for FTMS smart trainers on iPhone and iPad, with no account and rides kept on the device

All training apps in the table