The largest road race in the world is actually the 24 Hours of
Lemans (258,500). The Indy 500 is an Oval race, not a Road Race (in
auto-racing terms), but is still the largest single-day sporting
event in the world.
The largest scientific studies have shown that there is no
statistical difference in penis size attributable to race. Race
does not effect penis size. But with size by country Russia and
Italy have the largest. Russians typically at 8.56 and Italians at