Depends how big your pool is, doesn't it?
A 25-yard pool would make you do 4 lengths (one-way across) per 100 yds, which is 16 lengths for 400 yds.
Unless there is a green-white-checkered finish, the Nascar Sprint Cup Series race at Las Vegas Motor Speedway is scheduled for 267 laps (400.5 miles). The Nationwide Series race is 200 laps (300 miles) and the Camping World Truck Series race is 146 laps (219 miles).
four laps There are 4 laps to a Speedway race.
To be an official Nascar race, the drivers must complete 100 of 200 laps. Once lap 101 begins, it's an official race.
there are 9 laps
10,000 / 400 = 25
9
The race
In a typical Formula 1 race, drivers complete around 50 to 70 laps on the race track.
9
One!
24.85 laps
There are twelve and a half laps of a 400m track in a 5000m.