1 · Race Report
Marlen Reusser (Movistar) won Stage 4, the Gevrey-Chambertin > Dijon time trial, covering the 21 km in 27:30 at 45.8 km/h, 3 seconds up on Lieke Nooijen and 17 on Demi Vollering. On a flat TT the winning margin is aerodynamics and raw power, not watts per kilo, and her ride landed right on our predicted ~318 W winning effort.
2 · What It Took to Win
Reusser's 27:30 works out to an estimated ~318 W = ~4.5 W/kg at 70 kg. But a flat time trial is decided by watts divided by CdA, not watts per kilo: her winning effort is about ~1510 W/CdA (318 W at 0.21 m² of drag area). That is the number that wins. Every 50 W/CdA deficit costs about 15 seconds to Dijon at 45.8 km/h, and the Lacets de Marsannay is the only section where W/kg decides.
| Aero deficit to the winner | Roughly equal to | Time lost in Dijon |
|---|---|---|
| Down 50 W/CdA | 0.1 W/kg at the same CdA | ~15 sec |
| Down 100 W/CdA | 0.2 W/kg at the same CdA | ~30 sec |
| Down 150 W/CdA | 0.3 W/kg at the same CdA | ~45 sec |
3 · The Podium
- 1Marlen Reusser
- 2Lieke Nooijen
- 3Demi Vollering
4 · Train These Watts: Copy This Into CoachCat
What that workout looks like (2 x 20 min at threshold (95-100% FTP) in your TT position):
Want a plan that builds these watts?
Train the exact power demands of the Tour, scaled to your fitness and your schedule. Two ways to do it with FasCat: