SPA-FRANCORCHAMPS, Belgium — Lewis Hamilton won the Belgian Grand Prix on Sunday from pole, easily holding off Mercedes teammate Nico Rosberg and padding his lead in the Formula One championship standings.
The defending champion finished two seconds ahead for his sixth victory of the season in 11 races.
"An amazing weekend," Hamilton said. "I had great pace in the car. I was cautious at the end because of tires but I brought it home."
Hamilton's 80th podium pulled him level with the late F1 ace Ayrton Senna in fourth on the all-time list. Rosberg has 36, level with two-time champion Graham Hill. It was the seventh 1-2 finish for Mercedes this season.
Rosberg had a poor start and dropped from second to fourth before regaining the second position.
"I completely messed up the start," Rosberg said. "Then I fought my way through and gave it everything, we were both really on the edge all the time. Lewis did a great job and deserved the win.
"I gave it everything, but not enough. I tried everything but Lewis knew how to react."
Rosberg was in a rush to leave the circuit since his wife is expecting their first child "any time."
The two Mercedes cars were dominant throughout the race, unlike the previous Grand Prix in Hungary three weeks ago when they failed to make the podium.
"Nico had good pace but I was able to answer all the time. At the end when I saw a tire had blown on another car, I was very cautious," Hamilton said. "I was fairly relaxed at the end, the car was fantastic all weekend."
Hamilton's 39th career victory — and second in Spa — gave him a 28-point lead over Rosberg in the drivers' standings, with eight races remaining. Hamilton is seeking his third championship.
On Lap 32, Ferrari told Vettel over team radio that the tires looked "pretty good to go to the end. " But in the 42nd and penultimate lap, his rear right blew out as Grosjean kept up the pressure on the Ferrari driver.
"It was a bit scary being behind," Grosjean said.
Vettel was on a one-stop strategy and the risk did not pay off, leaving Ferrari without a podium finish in its 900th Grand Prix. The German driver is now 67 points behind Hamilton in the drivers' standings in third place.
Grosjean made his first podium since finishing second in the U.S. Grand Prix in Austin, Texas, in 2013. He was banned for one race after being blamed for causing a multi-car crash at the start of the Belgian Grand Prix in 2012.
"I can't believe I am on the podium," Grosjean said.
Grosjean started from ninth position on the grid after being penalized five places for an illegal gearbox change.
Lotus has been involved in problems off the track, with Belgian police threatening to impound the cars because of money owed to a former reserve driver.
"Of course at Spa I still remember Turn 1 in 2012, but I think that made me stronger," Grosjean said.
Hamilton's winning time was one hour, 23 minutes, 40.387 seconds for the 43 laps on the 7-kilometer (4.35-mile) circuit, the longest and among the fastest on the Formula One calendar. The race was cut by a lap because the first start had to be abandoned when Nico Hulkenberg's Force India lost power.
Daniil Kvyat was fourth in a Red Bull, Sergio Perez finished fifth in his Force India after climbing as high as second during the race, Felippe Massa was sixth in a Williams and four-time Belgian GP winner Kimi Raikkonen seventh in Ferrari. Also in the points were Max Verstappen in a Toro Rosso, Valtteri Bottas in a Williams and Marcus Ericsson in a Sauber.
Bottas started third but also messed up his start and then had a drive-thru penalty when his team put the wrong tire on one of the wheels.
Red Bull's Daniel Ricciardo, last year's winner in Spa who was battling for a podium finish, had to drop out in Lap 21 when his car lost power.