Athlete summary
In the final ~two weeks before an A-event, Koyaro cuts training volume (TSS / hours) by 41–60% versus your last proper build week, but keeps:
- Intensity — VO2, threshold, and other quality sessions stay in the mix (shorter, not watered down to all endurance/tempo).
- Frequency — you do not suddenly drop to fewer ride days than the build pattern; freshness comes from shorter rides, not empty calendars.
That is the Bosquet meta-analysis rule coaches still use — not a proprietary “taper score.”
What the engine locks
| Constraint | Engine behavior | Citation |
|---|---|---|
| Duration | 2 wk when plan horizon ≥ 8; 1 wk for 3–7; none below 3 | bosquet-2007-taper |
| Volume baseline | Last build week TSS (skip recovery weeks), not peak-of-plan fiction | same |
| Volume cut | Remaining load factors in [0.40, 0.59] (−60% … −41%) | same |
| 2-wk shape | Week −2: −41% (factor 0.59); race week: −60% (factor 0.40) | same |
| Intensity | Philosophy quality roles kept in taper; BBP uses build TID | same |
| Frequency | Same rest/ride-day budget as build (no forced ≤4 rides) | same |
What this is not
- Not a sex-specific volume table. Mateo-March Biol Sport 2026 last-week female −44% vs male −21% is an observational note only; Bosquet ranges are unchanged.
- Not a new periodization philosophy or block-HIT protocol.
- Not Foster monotony / CTL ramp guards.
Literature
- Bosquet, L., Montpetit, J., Arvisais, D., & Mujika, I. (2007). Effects of tapering on performance: A meta-analysis. Medicine & Science in Sports & Exercise, 39(8), 1358–1365.