to keep the swimmers in there own lanes
I think it's to do with the swimmers with the top 2 times.
An olympic size swimming pool has 10 lanes however only the middle 8 lanes are used for competition, with the outside two lanes being used to prevent the swimmers' waves bouncing off the walls
There are 10 lanes in an olympic swimming pool
Typically 10 lanes.
The definition of an Olympic size swimming pool is 10 lanes each 2.5 meters wide, however to prevent the outside lanes being disadvantaged by having to compete with the waves bouncing off the sides of the pool only the middle 8 lanes are ever used.
10- 8 for swimming and two outside lanes to keep the backsplash down
8 or 6
In a normal Olympic Pool there are 10 lanes. I'm not too sure what a semi Olympic pool is!
50 meters long and 8 lanes