Determine your readiness to perform by analyzing the balance between your long-term fitness and short-term fatigue.
Your Current TSB Score:
-15
Note: A negative score indicates you are training harder than your baseline (fatigued), while a positive score indicates you are tapering or recovered (fresh).
TSB measures the relationship between chronic fitness and acute fatigue to predict performance readiness.
Formula: TSB = Chronic Training Load (CTL) - Acute Training Load (ATL)
Consider a cyclist preparing for a weekend race.
Most athletes perform best with a TSB between +5 and +25, often called the Freshness window.
A score below -30 usually follows a heavy training block and suggests a high risk of injury if recovery is not prioritized.
No. Sustained positive TSB often indicates detraining and a loss of fitness over time.
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