How much slower per mile would soft, soggy, wet grass be compared to asphalt if the terrain were the same (flat, mowed grass, no pot holes, etc.)?
How much slower per mile would soft, soggy, wet grass be compared to asphalt if the terrain were the same (flat, mowed grass, no pot holes, etc.)?
3 seconds/400 meters.
No. It has been proven to be 6.3 seconds/400m
A close approximation is cross country time versus track time. About 15 seconds per mile.