Robert Bailey, Freelance Writer

Usain Bolt (second right) races towards the finish line to win the men's 200m dash on Sunday's final day of the Jamaica Olympic trials at the National Stadium. Bolt ran 19.97 to win the event. He is chased by Ricardo Williams (right), who placed seventh, fourth place finisher Nesta Carter (second left) and Xavier Brown, who ended sixth. - Ian Allen/Staff Photographer

Glen Mills, coach of world 100m record holder Usain Bolt, said despite his athlete's superb early season form, he is still not at his best.

Mills made this disclosure after Bolt's fourth sub-10 clocking of the season to win the men's 100m at the National Athletics Championships last Saturday at the National Stadium.

Bolt ran 9.85 seconds to win ahead of former 100m world record holder Asafa Powell (9.97) and Michael Frater (10.04).

Mills added that he slowed down Bolt's preparation heading into the trials so that he peaks at the Olympics.

Peak in August

"He is not at his best right now because we want him to peak in August," said Mills.

"He has been running 9.70s (9.7+) for the past two races and he is a bit too sharpe at the moment, and so we had to take it down coming into the trials," said Mills, who is also the head coach of Racers Track Club.

"We have to take it down now and work for a peak in August. He can't maintain this level of sharpness until August," Mills concluded.

Bolt, who also holds the national 200m record at 19.75, returned on Sunday to complete the sprint double, clocking 19.97 seconds in the half-lap sprint.

Marvin Anderson was second in 20.17 and the veteran Christopher Williams stopped the clock at 20.20.