TriTunereading your night…
DemoA sample athlete — explore freely, nothing saves.Join the waitlist

Performance

Fitness, fatigue, load balance, and race-day projection.

Race outlook · Big Apple Triathlon
low confidence
Too far out to call

Race-day form comes into view inside 30 days. For now: current form (TSB) -7, aiming for +5 to +15 on the day.

Form now: -7Target band: +5 to +15152d to go
Fitness (CTL)idef.Chronic Training Load — 42-day exponentially-weighted TSS. Your long-term aerobic base.Why?
38
Fatigue (ATL)idef.Acute Training Load — 7-day weighted TSS. Current systemic fatigue.Why?
45
Form (TSB)idef.Training Stress Balance = CTL − ATL. Negative = fatigued, positive = fresh. Race-day sweet spot: +5 to +15.Why?
-7
CTL Rampidef.Weekly CTL change rate. A conservative pacing guide: ≤5%/week. The evidence-backed spike signal is single-session distance vs your recent longest run (see Run spike below).Why?
+5%

Taper Calculatoridef.Back-solves the constant daily TSS needed to hit your target race-day form (TSB), then projects CTL/ATL forward so you can see the shape of the build.

+10(sweet spot +5 to +15)
Daily TSS targetidef.Hold this average daily TSS from today to race day to hit your target form.
18
avg across taper
Projected CTLidef.Fitness you'll carry into the race under this taper plan.
28.4
race-day fitness
Projected ATL
18.5
race-day fatigue
Projected TSBidef.Should be +5 to +15 for a peak performance. Adjust the target TSB slider to tune.
+9.9
race-day form

~18 TSS/day = roughly short easy spin + short run on training days, with rest days mixed in.

Performance Management Chartidef.Solid lines = historical. Dashed lines = projected forward to selected race + 7 days, using a realistic weekly training pattern. Click a race above to zoom the forecast window.

History
CTL FitnessATL FatigueTSB FormProjected — weekly pattern · avg 18 TSS/day
Projected values on race day — based on taper plan above
BEscape the Cape27d
CTL28.3ATL17.7TSB+10.6

Form Trend (TSB)idef.Training Stress Balance over time. Green = fresh, orange = fatigued. Race-day target: +5 to +15.

Power TSS for Zwift rides · HRSS for run / swim · cold-start seeded from training average

TodaySleepTrainProgress