There is no 150 meter sprint at the Olympics.
Usain Bolt at 2008 Beijing Summer Olympics in 19.30 seconds
the mens 100 meter sprint
Usain Bolt of Jamaica ran the fastest time in the 200 meter dash with a time of 19.30 seconds set at the 2008 Summer Olympics in Beijing.
The fastest child on earth is 7.4
1.14.11 and it is Wilson kipketer
Michael Johnson of the United States ran the second fastest time in the 200 meter dash with a time of 19.32 seconds at the 1996 Summer Olympics in Atlanta.
You have to be at least turning 16.