Chinese freestyle swimmer Zhang Zhanshuo completed his sweep of seven gold medals at the Asian Games, taking the 400-meter freestyle in 3 minutes, 41.28 seconds on the final day of swimming at the Asian Games.

Shin Ohashi of Japan has set a world record in the 200-meter breaststroke at the Asian Games, swimming a time of 2 minutes 4.83 seconds.

The gold medals were spread around Friday at the swimming world championships, thanks to the absence of stars Léon Marchand of France and Canadian Summer McIntosh from any finals on Day 6 in Singapore.

China is trying to fight fire with fire in the face of persistent doping allegations that have dogged its swimmers at the Paris Olympics.