Mercedes’ Lewis Hamilton insists he will not take any ‘silly risks’ as he closes in on a fourth world title.

The British driver has pulled 59 points clear of championship rival Sebastian Vettel over recent weeks, winning four of the five races since the summer break.

The 32-year-old can wrap up world championship glory if he wins next week’s United States Grand Prix and Ferrari ace Vettel finishes sixth or lower.

Hamilton believes his experience in these kinds of situations has served him well over the second-half of the season and he insists he will not make any ‘silly mistakes’ during the final four races of the year.

“I feel like I have a perfect balance on race weekends,” Hamilton told Crash.net.

“I guess my experience allows me to know when I have to push and when I have to hold back a little bit, and as you saw in Malaysia that’s what I do.

“I arrive at every race to win and I absolutely am not going to take silly risks.

I’m sure you know I’m not one to take silly risks because I’m not often penalised for doing such things.

I think it’s going to be fine.” The United States Grand Prix is due to take place on October 22 and Hamilton has an impressive record at Circuit of the Americas, as he has won at the venue on five previous occasions, including in each of the last three years.

Hamilton is priced at 1.80 to secure race glory in Texas, while nearest rival Vettel is available at 3.00 to claim his first GP success since the Hungarian Grand Prix in July.