He definitely should’ve done a couple of extra laps. 
It sounds like he’s not too stressed.
I’ve got stand alone GPS with high res maps and I wouldn’t trust that to be accurate enough with elevation. It could be interesting to compare that elevation data compared to my head unit though.
I think it could be a better solution to take elevation readings at two points without any GPS obstructions and then base the laps on the difference.
This sent me down a deep rabbit hole of cycling awesomeness, thanks 
.
Also, he was aiming for 4.4w/kg for the duration … 
And I thought our pool was special!
On our Saturday group rides, most people are running Garmins, I run a Wahoo. Among 10 riders, there are no duplicates in elevation gained. I can’t put too much stock in the accuracy of the head units as a result.
without violating any NDAs let me just say make sure your Garmin device gets good airflow. Expect Wahoos to record a little lower elevation gain. If you want to record maximum elevation consider a garmin 510.
But if 10 riders ride the same hill 30 Saturdays in a year, it’s not unreasonable to expect that the mean of all those barometric tracks would be quite close to the actual gain on a particular segment.
Wow, just watched this. Amazing. I`m planning to ride the route this summer/autumn following the GB Duro route but avoiding the towns. Certainly don’t want to go into Manchester!
Looks like he was way ahead of the rest of the field
Looks like he did it, again. Sorry Doughnut it’s a Strava link but I’m sure you will find it elsewhere.
It’s impressive to do once, let alone twice and so soon after the first attempt.
If you do pass Manchester I’ll do a few miles with you.
I`ll let you know.
It may be next year now, Unless I find time in September, but I also do motorsport so may not get time.
If I do it , I will do it to enjoy, not do crazy long hours 
Lachlan is amazing. So chill but what an incredible rider.
And CyclingTips / Hells 500 have confirmed. They were also apparently incredibly careful with the elevation this time:
Ahead of Morton’s second attempt, Hells 500 verified the new segment using highly accurate LiDAR data and expertise from the co-founder of OpenTopography, Chris Crosby. Strava marks the segment as gaining 189 m, but the data show it actually gains 190 m per lap, which means Morton needed 46.57 laps to hit the height of Everest.
Absolutely amazing.
What did I say ? I told ya he is a freak. 
Check out that max speed!!??
I imagine a poor descender would have trouble with Everesting even if they were a superior climber.
Lachlan who?
Bump cuz it’s epic.
It’s still awesome — a teenaged CXer doing a TRIPLE EVEREST! 
Kinda puts those seasoned old pro racer efforts into perspective.
His for-a-good-cause gofundme is almost at target. Let’s make it happen.
Contador has broken everesting record. The only statistic I would like to know how long he was stainding in the pedals.