alex_korr wrote:
Further to this point, I ran a marathon this morning with a course that was sort of out and back (San Diego Rocknroll). Anyhow, there was a big ass flat bed truck in front of the leading men when I saw them on the way back. The track had a display and a few rows of seats with people cheering on. It was as much of an airfoil as that Tesla on the track. It was probably there from the start and it was maybe 10-12 yards in front of the lead pack.
I bet it happens in every major marathon.
So the leading men were breathing in exhaust for miles and miles?