Sebastian Vettel said it had been a 'perfect day' in Korea after he secured the F1 points lead with a third successive win.
The defending champion took the lead from Red Bull team-mate Mark Webber as the start and then led throughout for a victory that has seen him move from four behind Fernando Alonso to six points ahead with four races left to run this season.
There was a late scare for the German when he locked up into turn three and was forced to ease off but his lead was such that Vettel was still able to secure his fourth win of the year with ease.
"I think it was a perfect day for me and the team, “ he said. “It was important to get a good start. I was able to out-accelerate Mark and get side by side, I had the inside for turn three and a good exit, which meant I could stay ahead for turn four. I was in the lead, but we have seen before that it doesn't always stick.
“My one mistake today was a lock-up going in to turn three, but with the tyres it was marginal for everyone. You couldn't push so much and my front right didn't look too happy from the inside many times. We were able to pull away in the first and second stint and hold it for the third. We will have to do our best to remain where we are now. We have to just keep it simple and do our job."
Having lost the lead off the line, Webber followed Vettel all the way to the flag and he admitted that the biggest battle had been with the tyres and not with any of his rivals on track.
"I had a bit too much clutch off the line, which was disappointing,” he said. “I put up a fight on the back straight with Sebastian, as it wasn't all over. I tried to make a move, but once I pulled out of his slipstream, both of us were on the same speed. After that I was going quite well in the first part of the race. I couldn't use DRS, due to the yellow flags and after that it became a tyre battle.
“The second stint wasn't so good, as I went a bit slower to conserve the tyres, but that made the degradation a bit worse. The last stint was the strongest, but it was too late by then. Congratulations to Sebastian on the win and it's great for the team that we got a one two, especially for the Constructors', but I have mixed emotions. It was a good result, but of course, I wanted to get the top result today."
The race marked the first 1-2 finish for Red Bull this season and team boss Christian Horner praised both Vettel and Webber for their performance as a result.
"A phenomenal team result,” he said. “It was our first one two of the season and a great performance. Both drivers executed excellent races. Sebastian made the better start and he and Mark ran side by side all the way down the straight to turn three, but gave each other just enough room.
“Thereafter it was a case of tyre management and executing a good strategic race, which we did with both cars to seal our first one two of 2012. It's been a very positive ten days and it's important we continue to build on the momentum going into the final four races."