OK, maybe not hundreds of yards/meters, but for dozens of yards.
At his speed, he is running 100 yards in about 15 seconds.
I'm sure his top (burst) speed is pretty good, better than 4 minutes/mile. These guys train on a variety of distances and speeds. It helps increase their flexibility and range.
Usain Bolt is the current men's 100M record holder. How about swimming the same distance in a swimming pool? How about swimming 10,000 meters or running 26 miles?
Anyhow, my point stands that synthetic benchmarks are just one measuring point for one activity.
I like to run my systems around 15-20 percent so they have plenty of overhead capacity. My approach on x86 is to use Virtual Machines that use 1-2 cores so as to keep overall CPU usage down. If I were doing a lot of transcoding on a regular basis, I think that I'd offload it on a separate system.
Kipchogi would have me on the first step. My top speed is 12 MPH and I can't maintain it over 1/8th of a mile. Kipchogi is the only person to have run a marathon in under 2 hours.