The ladies from Miami Northwestern High School (FL) cruised a 3:49.08 in the 4x400m relay to win the GMAC Championship. The team's time is the new US No. 6 mark.
In the same race, the ladies from North Miami High School ran the new US No. 9 time. The team clocked a 3:51.15 to place second.
Watch the race above and check out more from the meet in the links below.