Usain Bolt won the 100 metres in 9.86 seconds at a Daegu meet yesterday.
Bolt's time was 0.28 seconds off his world record of 9.58 at last year's world championships in Berlin.
Bolt, who also holds the world record in the 200, said he has high expectations of setting another world record when he returns to Daegu Stadium for the 2011 world championships.
Fellow Jamaican Michael Frater was second in 10.15.
Carmelita Jeter won the women's 100 in 11.00.
Also, Ryan Bailey of the United States won the men's 200 in 20.58.
