Brianna Lyston of Louisiana State University (LSU) ran a stunning personal best 7.07 seconds to win the women’s 60m dash on Saturday’s second day of the Razorback Invitational held at the Randal Tyson indoor complex in Fayetteville, Arkansas. After running 7.14 seconds earlier in qualifying, the 19-year-old Jamaican returned to tie the LSU record set by Aleia Hobbs. It was the fastest run in the US so far this year,...