Usain Bolt cruised to victory in a sprint challenge in Rio on Sunday but the Jamaican world record holder declared himself unhappy with his performance in his first 100 metres of the season.

Bolt pulled away from Ryan Bailey to finish in 10.12, 0.12 seconds clear of the American Olympian.

Brazilian Jose Carlos Moreira was third in 10.51 and Churandy Martina, of the Netherlands, was fourth in 10.53.

“I think it was poor execution overall. I am sure my coach isn’t going to be too happy. The good thing is that I won,” Bolt said.

The race, at Rio de Janeiro’s horse-racing track in specially assembled lanes, was literally a walk in the park for the six-time Olympic gold medal winner.

With the iconic statute of Christ the Redeemer behind him, Bolt clowned around on the starting line but was more serious in his post-race assessment.

“Overall, I didn’t feel myself, but I think it is just lack of races, he said.

“It will take time for me to get back to my best so I just need to run more and I’ll be okay. This is always my first race of the season so it is not going to be as fast as everyone wants it to be.”

The race was his third ‘Mano a Mano’ challenge in Rio, the city that will host the 2016 Olympics.

Bolt, who won gold in the 100m, 200m and 4x100m relay in both Beijing and London, hopes to complete another Olympic triple gold in Brazil and he has been to the city four times to acclimatise.