Juniors Hanna Mar and Marianne Jodoin both dropped the first set in their respective singles matches, but rallied to lead the 15th-ranked Duke women’s tennis team past No. 17 Texas Tech, 4-3, Sunday in the second round of the NCAA Tournament. With the win, the Blue Devils advance to the Round of 16 for the 21st time in the previous 25 tournaments, where they are slated to face top-seeded Florida May 17 in Urbana, Ill.