How Arc Works
Keep every next decision connected
The decisions you make—whether you train, adjust, or delay a run—give Arc more context for how to support your goal. The context you add helps keep the next decision useful.
The current coaching loop
What happens when you use Arc.
The point is not to remove every decision from training.
It is to give each decision the context it needs.
Every completed activity adds to the picture.
Activity Review connects what happened, what was planned, the context you add afterward, and what may matter for the next decision.
-
What happened
The facts of the activity
-
What was planned
The intended workout
-
What you add
How it felt or what changed
-
What may matter next
The coaching takeaway
More than a plan in isolation
A plan is just the beginning. Arc focuses on what matters most to you—whether that means keeping today’s direction intact in Basecamp or shifting because life got in the way. Your goal, plan, recent training, added context, and reviews work together to shape the next decision.