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Fitness (CTL) is your longer-term training load, Fatigue (ATL) is your short-term load, and Form is the balance between them — strongly negative means you're carrying real fatigue, positive means you're fresh. Why?
Drag the slider to set a planned weekly volume and watch where Fitness (CTL) and Form would actually land 4 weeks out, using the same model as the chart above. Not a promise \u2014 real training never runs on rails \u2014 but a genuine projection from real starting numbers, not a guess.
Why?
Why?
Why?