In taking the chequered flag at the Singapore Grand Prix, Hamilton claimed victory number 29 of his Formula One career and his seventh of the season.
Championship rival and Mercedes team-mate Nico Rosberg suffered his second retirement of the campaign – a wiring loom breaking in the steering of the German’s car, leaving him without a number of vital functions ahead of the start of F1’s only night race.
It is only the second time this season Hamilton has had his nose in front, the other being for one race going into a highly-contentious Monaco Grand Prix.
Hamilton said: “I just feel relaxed. I came here to do a job, and I came through it without any issues on our side of the garage all weekend, which was a real blessing.”
Rosberg was despondent but philosophical as the fight now goes down to the final five races.
“It was the toughest day for me this year, even worse than Silverstone (where he retired with a gearbox problem).
“None of the steering wheel functions worked, so I had no DRS, the gears were all over the place, my brake balance was totally in the wrong place. Sitting on the grid I felt helpless.
There was still drama for Hamilton to negotiate before he claimed his win with the deployment of the safety car on lap 31 after the front wing of Sergio Perez’s Force India shattered across the track following a collision with Sauber’s Adrian Sutil.
After six laps to clear the debris, Hamilton was left running on the supersoft tyre – but needing to make a final stop – whilst those behind were looking to go to the end on soft rubber.
Hamilton then wrung the life out of his car for 16 laps in a bid to come out ahead of as many cars as possible.
He filed in between Red Bull duo Sebastian Vettel and Daniel Ricciardo but on fresh tyres needed only one-and-a-half laps to take over at the front, from which point he stormed to victory, with the race reaching its two-hour limit after 60 of the planned 61 laps.
Second for Vettel was his best result of a troubled year, with Ricciardo in third.