Keep stacking healthy training blocks.
Save morning check-in to see suggestions.
Enable to track an active injury and monitor load density.
No activity data yet. Sync your Strava activities to get started.
Tap any day to set your planned distance, elevation, and time.
Showing actual Strava activities for the 6-week window.
StayStacking helps endurance athletes build fitness without breaking down. It tracks your training load so you can stack healthy weeks, not injuries.
Your weekly load is tracked across distance, elevation, time, and heart rate zones. Use the buttons above the chart to switch between views. Sudden week-over-week spikes are the primary warning sign of injury risk — a gradual, consistent build is the goal.
You can revisit this guide any time by tapping the ? button at the bottom right of the screen.