AP
Michael Phelps qualified fastest into the 100m butterfly final in his first race since August at the Pro Swim Series at Mesa, Ariz., on Thursday.
Phelps, a three-time Olympic 100m fly champion, clocked 52.92 seconds to win a preliminary heat Thursday afternoon (full results here). He leads an eight-man final that includes Ryan Lochte, who won his earlier preliminary heat in 53.17 with the No. 3 time overall.
The finals session is at 9 p.m. ET on Universal Sports.
Phelps is swimming in Mesa following a six-month suspension after a September DUI arrest.