the ancient olympic track was called the stadion and it was 192m.
About 100 m.
192 meters long.
Probobly as long as it is now
it was like it is today 183m long (true)
The race track was 0. 12 miles.
About one eighth of a mile.
192 metres = 0.119303 miles.
400m - oval track
An Olympic size track is 400 meters.
There is no Roman Olympic track. The Olympics were an ancient Greek religious festival, not a Roman one.