Originally Posted by
StephenH
But note that that race involved horses with riders, not just horses running.
Although I would be very doubtful that a horse could run at high speed for 100+ miles.
From what I recall, this race is rigged in favor of the horse, e.g., the horses are allowed to take rest breaks and that time is added to the runner's times.
I recall from my history books that straight up man vs. horse races were common in the USA during the 1800s (usually involving betting) and the man usually won.