As a No.6 recruit in the Class of 2017, Katz committed to swim for the Texas Longhorns. As a freshman in college, Katz was a part of four winning relays at the Big-12 Championships. He won both of the backstroke events and broke the Championship Record in the 200 backstroke with a time of 1:39.10. At the NCAA Championships, Katz scored 35 points and helped Texas win its fourth consecutive team title. He placed fourth in the 100 backstroke breaking the 45 second mark by 0.01 seconds. On the last day of the meet, Katz won his first NCAA Championship title in the 200 backstroke in front of his team mate John Shebat. Katz entered the final with a fourth fastest time but he managed to drop 1.31 seconds and take the title in 1:37.53.