Although she won the 200m IM without being seriously challenged at the World Cup's Beijing leg, star Chinese swimmer Ye Shiwen was guarded about her performance at her first international meet since the London Olympics.

"I felt comfortable about the race, but the time was slower than I expected," Ye told a packed mixed zone after clocking 2 min, 6.10 sec to win the final.

"I just started to practice systematically after altitude training. It was good enough (to claim the title)."