Daiya Seto won the 200-meter individual medley on Saturday at a short-course World Cup meet in Singapore, touching in 1 minute, 52.80 seconds.
Seto, who won the bronze medal at the Rio Games in August, won the 400 IM on Friday as well as the 200 butterfly. He settled for a runner-up finish in the 200 freestyle on Saturday.
Masato Sakai, the Rio silver medalist in the 200 butterfly, came third in the 1,500 freestyle.