Power Data Estimates for the climbing stages

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Merckx index said:
3:50
4:04
3:24
2:58
4:54
3:14
2:24
3:06
3:10
3:10
1:58
For future reference, a summary like this should probably be paired with the average gradient for each individual km. The final kms are all pretty evenly flat, and they were over a minute slower there than in the final km, and slower even than on the steeper portions beforehand. Even if we factor in the sprint it shows some pretty significant soft-pedalling on the flatter sections.
 
Feb 20, 2010
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Re:

Using that 64 Kg figure and the published power numbers (above), the results from Stage 15 were telling. The GC battle was on during the final climb. Kruijswijk held 6.3 W/Kg for 33m54s, which means so did the small group he finished with (all finished within a handful of seconds of each other):

2 Miguel Angel Lopez (Col) Astana Pro Team 0:00:28
3 Simon Yates (GBr) Mitchelton-Scott 0:00:30
4 Alejandro Valverde (Spa) Movistar Team 0:00:32
5 Steven Kruijswijk (Ned) LottoNL-Jumbo
6 Enric Mas (Spa) Quick-Step Floors 0:00:34
7 Nairo Quintana (Col) Movistar Team

Thibaut Pinot got away on the climb and finished alone ahead of the rest (and presumably had a slightly higher power to weight ratio):

1 Thibaut Pinot (Fra) Groupama-FDJ 5:01:49
 
Re:

zenoiz said:
Nairo crushes the Galibier!
http://www.climbing-records.com/2019/07/nairo-destroys-galibier-record.html
Impressive, given this was from a breakaway and the third climb on a long, hot stage mostly at altitude. The Quintana group rode the Izoard a lot slower than the GC guys, so he probably was keeping a lot in reserve there, and of course, there was a tailwind on Galibier...
Yes. Also impressive as I keep reading comments that he has under performed since 2016 after beating Froome in the Vuelta or that he should not train in Colombia. Demolished a few myths in today's ride, Galibier tailwind or not. Good on him! I hope he can do his record better justice in his new team that would be great retribution.
 
So apparently just to make the breakaway at the vuelta you have to crank over 6 w/kg for 20 minutes? That's surprising to me. (Most of the time on this forum we only hear about the GC guys.)

 
So apparently just to make the breakaway at the vuelta you have to crank over 6 w/kg for 20 minutes? That's surprising to me. (Most of the time on this forum we only hear about the GC guys.)

Not for 20 minutes. For this time many riders have done it in the WT.
 
Oct 7, 2019
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Indeed, Quintana’s time today of 28:05 – some 15 seconds faster than Pantani’s – is the only time in the top 16 that wasn’t set at the Tour de France.



Mont Ventoux Chalet Reynard 9.5km
  1. Nairo Quintana Tour de la Provence 2020 (#3) 28’05
Previous top 15

  1. Marco Pantani Tour de France 1994 (#15) 28’20
  2. Miguel Indurain Tour de France 1994 (#15) 28’58
  3. Lance Armstrong Tour de France 2002 (#14) 30’40
  4. Christopher Froome Tour de France 2013 (#15) 30’53
  5. Nairo Quintana Tour de France 2013 (#15) 30’53
  6. Alberto Contador Tour de France 2009 (#20) 31’06
  7. Andy Schleck Tour de France 2009 (#20) 31’06
  8. Alberto Contador Tour de France 2013 (#15) 31’13
  9. Jakob Fuglsang Tour de France 2013 (#15) 31’50
  10. Jean-Christophe Péraud Tour de France 2013 (#15) 31’50
  11. Joaquim Rodriguez Tour de France 2013 (#15) 31’50
  12. Bauke Mollema Tour de France 2013 (#15) 31’50
  13. Roman Kreuziger Tour de France 2013 (#15) 31’50
  14. Alejandro Valverde Tour de France 2013 (#15) 32’00
  15. Dan Martin Tour de France 2013 (#15) 32’10
http://www.stickybottle.com/latest-news/quintana-sets-new-mont-ventoux-record-time-beats-pantani-indurain-armstrong/
 
How many of the above actually finished at Chalet Reynard
The 1994 tdf stage went all the way over ventoux and finished after a descent. Pantani attacked the GC group before Chalet Reynard, but you're right, it's not a fair comparison since Pantani et al had to keep going for another 6km.

Some sources claim a tailwind, but Iljo Keisse tweeted no wind. Where exactly did 6.8 come from, was it calculated or measured?
 
Some sources claim a tailwind, but Iljo Keisse tweeted no wind. Where exactly did 6.8 come from, was it calculated or measured?
That part on Ventoux being in a forest doesn't usually have much wind, at best a very slight uphill draft due to thermal effects. I'm not at home and don't have here all the information needed for a more accurate calculation, but using what I have I get about 6.65 W/kg for Quintana.
 
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