The answer is 9.89secs!
The fastest i know of is 6 seconds by Gina Tuenta now she is older.
the fastest time so far is an 11.2
The standard for a 13 year old girl is around 12-13 seconds. It also depends on how good that girl is. I am in Track and Field and I do 100 meter sprints. My fastest time is 13.54 and I am 13. Most girls get around that time.
2min 21 sec
Jordan Hasay - 4:45.8
around 28 or 29 seconds
my daughter is 12 years old and just ran a 1500 her time was 5min 26sec
9.57 was mine