Gustav really pushed the back half of the marathon.
This video is going through his marathon.
3,41 average per kilometer.
Negative split.
Gustav really pushed the back half of the marathon.
This video is going through his marathon.
3,41 average per kilometer.
Negative split.
https://www.youtube.com/watch?v=bDNJGTmMe0Y
Their plan was always to attack out of the energy lab so they always planned to run the 2nd half faster.
Furthermore, it is now well documented that Blumenfeldt slowed the pace every time he came to the front. In his own words “to restâ€.
Everything Iden did was within his calculations and knowing when and how much he can push.
The best endurance athletic performances these days are not just athletes trying to barely hang on. Look at Kipchoge: He looked ridiculously calm coming down the chute and even ran over to his team after the WR.
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Management
Kipchoge chasing the record with laser like pacing precision, ran metronomically on the flat course with no wind or heat and slowed by 90 seconds on the second half of a 2 hour run
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Agreed on your last point. The crazy thing about bell curves is that the best athletes usually are separated from the remainder by significant margins. I bet Iden could have went below 2:35 if necessary. He also looked incredibly comfortable in Nice 70.3 WC 2019.
How much was the difference? impressive cranking it up to 11 after 7 hours on a record breaking day, quite patient too
By the way did anyone in the chase group put out thier power profile?
Kipchoge chasing the record with laser like pacing precision, ran metronomically on the flat course with no wind or heat and slowed by 90 seconds on the second half of a 2 hour run
I didn’t claim he ran a negative split. I was pointing out that he ran within his plan and achieved an amazing athletic performance. It isn’t about crawling across the line anymore. Precision in race execution is common for the tip of the spear.
Olaf and gus seem to be confident that another 10 minutes can be taken off the new record (total time)
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Just to put in context.
the 21 km mark is a few 100 ft above the finish line and there was a head wind going out and a tail wind going in.
So the last 21 km is net down hill and tail wind for most of the return miles.
Just for context. He still smashed it.
Leon did 270 watts in the chase group but he is pretty small KG. plus had a 1 min penalty.
I was thinking it is a net downhill, but its the way that it comes that does not make is an advantage. You have all the uphill out of the energy lab, and the set of gradual grades back to top of Palani that are like running with a gorilla on your back…then when you are completely spent, you have this free fall downhill down Palani…remember Macca saving himself for that and Ralaert being “done” with no remaining leg turnover to deal with it. So if you are “on” like Iden or Macca, the net downhill on the second half is helpful. And if you’re not, it can just be so energy sapping by the top of Palani that you can’t really use that advantageously. Maybe easier with the new shoes though to deal with those types of steep downhills than in the days of Macca and Ralaert?
the wind was going airport towards kona on slight up mountain, so running out of the energy lab was fastest on the whole week, while the run from top of Palini to the energy lab was the most difficult section km 12- 23.
as joe skipper pointed up he was running 3:40-3:45 down in Kona but up the queen Q 4:05 that was due to wind.
also look at how fast guys biked the last 10 km of the bike on the same road back in 31 + MPH.
That aside Gustav is the running man, 2:34 (not sure that was full effort) , 2:36 kona. Now if I am Blu or detliv I never work for him again on bike, or try not too.
Just to put in context.
the 21 km mark is a few 100 ft above the finish line and there was a head wind going out and a tail wind going in.
So the last 21 km is net down hill and tail wind for most of the return miles.
Just for context. He still smashed it.
Leon did 270 watts in the chase group but he is pretty small KG. plus had a 1 min penalty.
Not sure where you are getting last 21km as net downhill. Coming out of the energy lab road at Kaiminani is about 31 km into the current run course. So 11k from there to the finish. The elevation at the top on Palani is about the same as the intersection at Kaiminani so there’s a solid climb before dropping back to the Kuakini and then Ali’i.
Their plan was always to attack out of the energy lab so they always planned to run the 2nd half faster.
Minor correction - to attack out of the Energy Lab was Iden’s plan, not Blu’s. At least that’s what Olav Bu says. Blu was going to attack towards the very end, in his typical 1k or 2k finish style that we know from short course.
Their plan was always to attack out of the energy lab so they always planned to run the 2nd half faster.
Minor correction - to attack out of the Energy Lab was Iden’s plan, not Blu’s. At least that’s what Olav Bu says. Blu was going to attack towards the very end, in his typical 1k or 2k finish style that we know from short course.
Fair enough. Makes sense.
You start at sea level basically. At 21 km you are 141 feet above sea level.
So the 21.1 km to 42.2 goes from 141 feet to 4.
Plus wind in the face out win in your back in.
You start at sea level basically. At 21 km you are 141 feet above sea level.
So the 21.1 km to 42.2 goes from 141 feet to 4.
Plus wind in the face out win in your back in.
This makes no sense. Entering the energy lab at Kaiminani is around 23k. The course then drops all the way to sea level before it climbs back out to 33k. If the course climbs to its highest elevation twice in the last 21k using the net downhill description is incorrect. Wind was a big factor on Saturday, but there is no net downhill from 21k to the finish. The wind was only a big benefit for the Queen K portion of the last 11k.
The first 21 km has one climb up.
The next 21 km has two downhills and only one uphill.
So on paper the second half should be faster.
Although since it is at the second half of an ironman it isn’t for most.
Does that help.
If we did the first half fresh . Couple days later second half fresh, espically with that wind hat day. And more free downhill speed. Everyone would have gone faster on the second half.
Gustav is definitely very fast on the back half of an ironman marathon. So he is the only one that could do this in a race.
The first 21 km has one climb up.
The next 21 km has two downhills and only one uphill.
So on paper the second half should be faster.
Although since it is at the second half of an ironman it isn’t for most.
Does that help.
If we did the first half fresh . Couple days later second half fresh, espically with that wind hat day. And more free downhill speed. Everyone would have gone faster on the second half.
Gustav is definitely very fast on the back half of an ironman marathon. So he is the only one that could do this in a race.
I don’t need help. My point here has been that you assert the Gustav negative split the course because it is downhill and he had a tailwind. Because of the out and back on Ali’i, the course is not split equally around the energy lab turnaround. The halfway point comes before the lab road. The energy lab climb out has the highest metabolic cost of any segment of the run. So Gustav negative split the back half of the course dropping into, then climbing out of the energy lab, then picked it up for the rolling descent on the Queen K to Makala before climbing to again to Palani. Your assertion is that the back half of the run course is downhill is incorrect. As I’ve spelled out, the Queen K return segment that had a strong tailwind was less than 10k of the run.
Net downhill. The key work is “net”.
Net downhill. The key word (sp) is “net”.
Lets use some actual data. Of the top fastest Male Pro run times Gustav was the only one that hit an almost negative split. So where was this downhill advantage for the other top 5 pros? Right, there wasn’t one. This was Gustav and the plan he had from Bu.
Iden 0:00:16 slower final 21k
Blu 0:03:09 slower final 21k
Neuman 0:02:41 slower final 21k
Lange 0:03:52 slower final 21k
Laidlow 0:01:53 slower final 21k
No evidence the second half of the Kona marathon was faster due to downhill or wind.
BTW your net downhill calculation is incorrect as well. With Palani as high as the Kaiminani intx. the course climbs and descends an equal amount. Sea Level, Palani, Kaimanani, Energy lab turnaround, Kaimanani, Palani, Finish. Same number of climbs as descents. Steepest climb Palani. Longest, most difficult climb Kaiminani.
I’m out. If you can’t self-correct your erroneous assertion, there’s no reason to debate any further.