Sounds like it should be pretty close then.
I rode the said “Segement” the other day and it took 19 min 57 sec. However my legs were pretty shot from a big ride a few days before it. On the other hand there are a couple of gates, 2 of them were held open for me. I think a fresh set of legs should give me an extra minute perhaps.
Although the gradient is an average of 6.1% there are 2 very short downhill sections, probably a few hundred yards at most but I can probably hit 25 mph on them which should give me a breather, the last half a mile is much steeper at 11.3% average gradient and sections up to 25%+.
Wonder if he wants to race me back down!