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Power Data Estimates for the climbing stages

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Jul 13, 2012
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Interesting comments on the leaked power data from Ross Tucker: http://sportsscientists.com/2015/07/long-live-transparency-the-data-video-controversy/

Also, I was hoping to read Michele Ferrari's take on this. Unfortunately, his website which was running on Sunday, seems to be down today: http://www.53x12.com

As for the 2015 TdF, it was interesting for a week...

Tucker estimates Froome's performance today at 6,2 W/kg for 41 minutes, and has just posted his thoughts on this "one more pixel" of evidence: http://sportsscientists.com/2015/07/day-1-in-the-mountains-one-more-pixel-context-mistrust/
 
Re:

jens_attacks said:
Is 6,2 w/kg in such a easy stage really that mind-boggling?

what i hope we'll really find in the years to come is what happened to the other teams and riders on the rest day and why only sky performed as expected.
If only Sky performed as expected, shouldn't that tell you that the conditions weren't conducive to as good performances as previously thought and, therefore, that Sky did do extraordinarily well?
 
Re:

jens_attacks said:
Is 6,2 w/kg in such a easy stage really that mind-boggling?

what i hope we'll really find in the years to come is what happened to the other teams and riders on the rest day and why only sky performed as expected.
You know this guy was doing 5.3 watts/kg a few years back anyway. Now I want to know what kind of training he did to get to 6.2 w/kg.

6.2 w/kg is borderline for 40+minutes
 
enCYCLOpedia said:
Interesting comments on the leaked power data from Ross Tucker: http://sportsscientists.com/2015/07/long-live-transparency-the-data-video-controversy/

Also, I was hoping to read Michele Ferrari's take on this. Unfortunately, his website which was running on Sunday, seems to be down today: http://www.53x12.com

As for the 2015 TdF, it was interesting for a week...

Tucker estimates Froome's performance today at 6,2 W/kg for 41 minutes, and has just posted his thoughts on this "one more pixel" of evidence: http://sportsscientists.com/2015/07/day-1-in-the-mountains-one-more-pixel-context-mistrust/
These people sound pi$$ed off!!!
Gesink: 5.8 kg/w
Quintana:5.9 kg/w
Froome: 6.2 kg/w


For 41 minutes, making some conservative assumptions (that is, weighted in favour the rider), that implies a VO2max over 90 ml/kg/min, but more likely mid-90s, because he’d need to be riding at a super high % of max for it to be any lower. Or he must be 25 to 26% efficient, something documented and disputed only once before. And of course, the combination of super high VO2max and high efficiency is, by definition, rare. Too many ifs and buts, however, so moving along…
 
Re: Re:

hrotha said:
jens_attacks said:
Is 6,2 w/kg in such a easy stage really that mind-boggling?

what i hope we'll really find in the years to come is what happened to the other teams and riders on the rest day and why only sky performed as expected.
If only Sky performed as expected, shouldn't that tell you that the conditions weren't conducive to as good performances as previously thought and, therefore, that Sky did do extraordinarily well?

the conditions were good
i'm still intrigued why all the other teams except sky didn't recover like the peloton used to after 1993, in the rest day. i'm pretty amazed by the whole situation...maybe they will in the next stages, god knows what happened.
big lol at the french.
 
Re: Re:

jens_attacks said:
the conditions were good
i'm still intrigued why all the other teams except sky didn't recover like the peloton used to after 1993, in the rest day. i'm pretty amazed by the whole situation...maybe they will in the next stages, god knows what happened.
big lol at the french.
what's your take on it jens?

some of those performances were astonishigly bad. some riders almost looked clean indeed.
 
Re: Re:

SafeBet said:
jens_attacks said:
the conditions were good
i'm still intrigued why all the other teams except sky didn't recover like the peloton used to after 1993, in the rest day. i'm pretty amazed by the whole situation...maybe they will in the next stages, god knows what happened.
big lol at the french.
what's your take on it jens?

some of those performances were astonishigly bad. some riders almost looked clean indeed.

many teams directors gathering in a hotel
"hey let's all make a truce, no recovery in the rest day today, let's make team sky look really ridiculous."

:p

no idea to be serious, seems like team sky didn't get the memo or didn't care about it or something
 
May 26, 2015
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Re:

Alex Simmons/RST said:
It looked like a tailwind - each non held flag I could see on the TV was flapping lightly in a direction in support of the riders. That would inflate power estimates based on ascent rate by perhaps 0.2 - 0.4W/kg.
Looks like the tailwind only helped the bots.

Or do you lack so much knowledge to realize that the number "6,1W" matters as much as "5W" and "1432W"? It's about in what conditions it was done, how much time, etc. If a guy that was previously banned, is winning all sorts of races since a very young age, wins 9GTs, rides for Liberty Seguros, Once, Discovery and Tinkoff, and loses so many minutes to Froome, Porte and Thomas, just like previously winners and contenders also get obliterated, you have any info you need to formulate a decent opinion.

It may not be enough to arrest a bunch of people at sky, but it should be a start to investigate this way deeper and ban them from the sport.
 
Re: Re:

jens_attacks said:
SafeBet said:
jens_attacks said:
the conditions were good
i'm still intrigued why all the other teams except sky didn't recover like the peloton used to after 1993, in the rest day. i'm pretty amazed by the whole situation...maybe they will in the next stages, god knows what happened.
big lol at the french.
what's your take on it jens?

some of those performances were astonishigly bad. some riders almost looked clean indeed.

many teams directors gathering in a hotel
"hey let's all make a truce, no recovery in the rest day today, let's make team sky look really ridiculous."

:p

no idea to be serious, seems like team sky didn't get the memo or didn't care about it or something

I think Movistar did pretty good too,the surprise for Sky was that G. wasn't dropped and Porte's comeback.I think Quintana will improve as the race go on.
 
Re: Re:

jens_attacks said:
hrotha said:
jens_attacks said:
Is 6,2 w/kg in such a easy stage really that mind-boggling?

what i hope we'll really find in the years to come is what happened to the other teams and riders on the rest day and why only sky performed as expected.
If only Sky performed as expected, shouldn't that tell you that the conditions weren't conducive to as good performances as previously thought and, therefore, that Sky did do extraordinarily well?

the conditions were good
i'm still intrigued why all the other teams except sky didn't recover like the peloton used to after 1993, in the rest day. i'm pretty amazed by the whole situation...maybe they will in the next stages, god knows what happened.
big lol at the french.

The possibility of night time testing?
 
Re: Re:

pedromiguelmartins said:
Alex Simmons/RST said:
It looked like a tailwind - each non held flag I could see on the TV was flapping lightly in a direction in support of the riders. That would inflate power estimates based on ascent rate by perhaps 0.2 - 0.4W/kg.
Looks like the tailwind only helped the bots.
?
I'm simply pointing out that it looked like a bit of tailwind assist and as a result W/kg estimates might be a bit inflated. I said nothing about this only applying to particular riders.

pedromiguelmartins said:
Or do you lack so much knowledge to realize that the number "6,1W" matters as much as "5W" and "1432W"?
With all due respect, I'd say my knowledge of power output, power meters, and relevant factors is superior to most people on this forum, but not all of course. You might want to read some of my 10 years of blog posts on the topic of power output and associated matters.

pedromiguelmartins said:
It's about in what conditions it was done, how much time, etc. If a guy that was previously banned, is winning all sorts of races since a very young age, wins 9GTs, rides for Liberty Seguros, Once, Discovery and Tinkoff, and loses so many minutes to Froome, Porte and Thomas, just like previously winners and contenders also get obliterated, you have any info you need to formulate a decent opinion.
Or being unable to back up from a very tough Giro? Context indeed.