Crossings in the 1950s and earlier were significant, as most of the route then was a dirt track.
Two hundred laps were done on a dirt track spanning 0.500 mi.
For 1973, 1980 and 2005, the race was transferred to the dirt track.
Prior to their invention, runners would dig holes in the dirt track.
One hundred and sixty laps were done on a dirt track spanning.625 mi.
Yes, and dirt track racing too.
In fact, if it is necessary to subsidise or encourage any form of racing for military purposes, the racing that should be encouraged is that of the dirt track.
They are going to use a gravel pit for dirt track racing, and they are putting it down on a low level to mask the sound.
