Daiya Seto will start his hunt for a four-peat in the prelims of the men’s 400 IM.
Caeleb Dressel broke the American Record for the third time in 20.43, matching his swim on the mixed free relay.
The American men set another relay world record in the men’s 4×50 free in a time of 1:21.80.
Ariarne Titmus produced the fastest swim of all-time in the women’s 400 free final.
Ryan Murphy clocked 22.63 to break the official American Record of 22.87.
Fernando Scheffer had the 2nd fastest split in the field as Brazil smashed the 4×200 free relay world record.
Kolesnikov clocked 22.77 to lower his junior world record of 22.82.
Kolesnikov went 50.63 to become the 2nd fastest performer of all-time.
Evgeny Rylov became the 2nd fastest performer of all-time with his swim in the men’s 50 back final.
Marco Orsi broke his Italian Record in the 100 IM once again to win silver in the final.
Ranomi Kromowidjojo had the 3rd fastest swim in history to win the women’s 50 fly.
Ryan Held will swim on both free relays during day 4 finals in Hangzhou for the Americans.
Rapsys’ 1:40.95 broke Park Tae Hwan’s Championship Record of 1:41.03.
Boglarka Kapas didn’t show for the women’s 400 free prelims.