Sophomore sprinter Kyra Jefferson shattered a six-year-old school record in the 200m with a speedy 23.06 performance and junior jumper Marquis Dendy put up a nation-best 7.87m/25-10 mark in the men's long jump to open competition at the Razorback Invitational for the Orange and Blue at the Randal Tyson Track Center Friday in Fayetteville.