3/4's of a lap, most tracks are 400 metres. the 300 meter World record is 30.85 set in 2000 by Micheal Johnson. National High School record is 31.7 set in 1974 by Scott Ruvolo from Saddleback HS in Orange County at the Los Angeles Indoor Times.The women's record is 35.30 seconds, set by Ana Guevara in Mexico City.
One lap on an Olympic track is 400 meters. So one time around.
1 lap on an outdoor track, but indoor track are smaller, usually 200m so generally 2 laps.
Two laps, or .5 miles.
5000 meters would be 12.5 laps around an Olympic size (400 meters) track.
500 meters of swimming is only ten laps. In yards it is twice as much which is 20.
3 and 3/4 around a 400 m track
If you are talking olympic track, it is 400 metres