No, I know what a marathon is in running, a touch over 26 miles. I also know that I\’ll never run a marathon as my knee cartilages are screwed.
However, there are two other "endurance" sports that I can do, cycling and swimming. I\’m not saying that I\’m very good at them, but I can actually do them without entirely buggering up one joint or the other. So, the question is, what is the equivalent of a marathon in those two other sports?
Now with cycling I\’ve been thinking about it this way. A top class runner takes a shade over two hours to run a marathon. Thus a marathon in any other sport would be whatever is two hours concentrated effort by a top class performer. (I\’m sure there are errors with this idea so please do explain them to me.)
The world one hour record on a bike is around 50 km. Thus the equivalent of a marathon is 100 km on a bike, or thereabouts (which would explain why I feel somewhat tired today as by this standard I did a half-marathon yesterday….although not, obviously, in one hour).
But that calculation is rather buggered by the fact that Tour de France riders do more than 100 miles per day. Are they really doing 1.6 marathons a day for 23 days or whatever it is?
With swimming it gets dodgier, (or at least my numbers do). 1500m (a mile, essentially) is around 15 minutes as a world record. Thus the equivalent of a marathon in swimming is something like 8 miles.
Just eyeballing those figures, the cycling one looks too low, the swimming one too high. (For example, back when I was swimming regularly, a mile was a reasonable daily outing, but 8 would be nearly unthinkable. Now I\’m cycling 20-30 km is a stretch of the legs, the 50 yesterday was an outing, so 100 (and Î\’ve done 80 and 90 in the past couple of months) simply doesn\’t feel right for something as supposedly draining as a marathon.)
But here\’s the question. How far do I have to cycle or swim to be able to say that I\’ve done the "equivalent" of a marathon, given that I\’m physically incapable of doing the running one?Anyone?