Guides

Guides

Plain-language explanations of how training load works and what the metrics in 42Runs actually show.

• Watch & sync

  How to Connect Your Watch to 42Runs

  Garmin, Suunto, Coros, or Amazfit: how the pairing service connects, what syncs, and what to do if it doesn't.

• Training load

  Fitness, Fatigue, and Form: What They Mean and How to Read Them

  What the three numbers measure, how they relate to each other, and how to read negative or positive Form.

• Training zones

  Running Training Zones Explained: Pace, Heart Rate, and Perceived Effort

  The seven zones, three ways to target them, what threshold means, and how to find yours.

• Training abilities

  The Six Running Abilities: What Each Workout Is Actually Training

  The three basic and three advanced abilities behind every workout, and why a plan changes emphasis over time.

• Season planning

  How to Build an Annual Training Plan in 42Runs

  A/B/C races, weekly Load targets, Base–Build–Peak–Taper, and what the calendar actually shows.

• Watch & sync

  How to Connect Apple Watch to 42Runs

  Connect on iPhone with Health permission: planned workouts go to the watch, completed runs come back. No extra account.

• Watch & sync

  How to Connect Polar to 42Runs

  Polar uses the same pairing service as Garmin. Completed runs can come back. Polar cannot receive planned workouts yet.

• Watch & sync

  How to Connect Suunto to 42Runs

  Sign in with Suunto in the iPhone or Android app. Planned workouts go out as SuuntoPlus Guides. Race 2, Race, Race S, Vertical, Vertical 2, and Ocean work.

• For coaches

  What a Coach Can See: Performance Metrics and Charts in 42Runs

  Every performance metric a coach has for a connected athlete, what each one shows, and how it can be used.