Which sporting race is the toughest in the world?

Question

I would like to think is road bike racing. How about you?

Answer 1

That dog sled race- The Idiarod?

Answer 2

the iron man race or the dog sled race..i tink you can die in the dog sled race

Answer 3

Does the Iron Man count??  Those people are crazy!

Answer 4

It would be a toss up between the Iron Man Triathlon, and the Iditasport Impossible.  The Iron man, everyone knows is  swimming 2.2 miles, biking 120 miles, and running a full marathon (26.2 miles) in about 11 hours or less.  The Iditasport Impossible is an Ultra marathon event that travels for 1086 miles along the Iditarod Sled Dog trail and takes about 41-45 days to finish.  The entire distance is traveled on foot with competitors pulling all of their supplies behind them on a sled.

Answer 5

dunno

Answer 6

If we are talking automobiles than undoubtedly Formula 1

otherwise 100m sprint... for speed

or

5000M relay... for stamina