Fitness
Training Stress Score
Training stress score quantifies ride load from duration and intensity—helping you balance hard days, easy days, and deload weeks on the bike.
Training stress score (TSS) estimates workout load from duration and intensity relative to FTP—higher TSS means more training stress. A century at endurance pace might land near 200 TSS; a one-hour threshold session might match that with far less time.
Track weekly TSS trends, not single heroic days. Pair rising TSS with sleep and HRV.
Common questions
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What is a reasonable weekly TSS?
It varies by experience—beginners might build from 200–350; seasoned riders often handle more. Ramp gradually and watch recovery markers.
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Is high TSS always good?
No—TSS without recovery leads to overreaching; easy weeks should drop TSS sharply.
Related terms
Put Training Stress Score into practice
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