Hmmm, not sure. If you start at, say, 2000 m of elevation and end at sea level, then even on a course of 450 km gravity plays a significant role. Although I would agree that tailwind advantage would me more significant on a course length like that.
Definitely! He sounds like he’s having a great adventure. From the sound of it this is a huge jump in the totally unofficial self-supported touring distance record. Previously I believe it was held by Dave Cox who, while going across Canada, did something like 180km one day. The most I’ve done is a mid-tour century, 160km, in New Zealand this year, and that was the hardest century I’ve done.
