That depends on your definition of fit and the athletes at question.
For example, if the 400m runner is Jeremy Warner and the half marathoner is an overweight man that only trains 3 days a week, the 400m runner would be much fitter.
In general a half marathoner will be much fitter than a 400m runner in aerobic fitness but slightly weaker in anaerobic fitness. So it depends what your definition of fit is.
I am a long distance runner, so my opinion is biased, but I believe that a half marathoner is fitter than a 400m runner for many reasons. Usually long distance runners are much leaner due to the excessive amount of long distance runs they do on a weekly basis. Half marathoners also do a fair amount of speed work and weights, which ensures that their neuromuscular fitness is sufficient to allow them to take advantage of their aerobic fitness. Because of this the half marathoner would be much closer to a 400m runner in a 400 than the 400m runner would be to the half marathoner in a half marathon. When I say closer, I mean percentage wise because it would be unfair to compare them by time difference due to the distance discrepancy between the two events. The half marathon would allow for a much bigger time difference than the 400 due to the distance discrepancy.
I hope this information helps you decide which athlete is the most fit!
There are 26.2 miles in a full marathon, thus there are 13.1 miles in a half marathon. No odd calculations... a half marathon is a half marathon.
Yes, there is a half marathon. A half marathon is about 13.1 miles long, half the distance of a full marathon, 26.2 miles.
36'ooo foot in half a marathon
Lisbon Half Marathon was created in 1991.
Egmond Half Marathon was created in 1973.
Porto Half Marathon was created in 1997.
Granollers Half Marathon was created in 1987.
Sapporo Half Marathon was created in 1958.
Portugal Half Marathon was created in 2000.
Budapest Half Marathon was created in 1984.
Lille Half Marathon was created in 1986.
Bogotá Half Marathon was created in 2000.