The old record (11.11) was set only last month by Kiara Grant, also in the United States.
Interestingly, Jamaica now have five juniors faster than 11.20; Williams, Grant, Kevona Davis 11.16, Ashante Moore 11.19 and Lanae-Tava Thomas 11.19. Three in Williams, Davis and Thomas will be juniors next year. Add the Clayton twins (14yrs old) to this group, among others and there is a lot of reasons to be excited.
NB: Thomas was born in Kingston, Jamaica, on January 28, 2001.