In a rather dull race, Sebastian stroked his car home in his usual dominant fashion, leading from start to finish.
Mark Webber was left to rue another opportunity missed as he finished some way behind his team-mate in second.
Fernando Alonso was happy to make the final podium slot while Felipe Massa continued his good form with fourth place. Kimi Raikkonen completed the top five.
The only shining light upon the race in Yeongam was the smaller teams mixing it with the big boys throughout the Grand Prix as the Toro Rossos of Jean-Eric Vergne and Daniel Ricciardo gave the bigger names a headache.
The start saw the return of the rookie errors, with Kamui Kobayashi and Sergio Perez dealing out several whacks to the other drivers; Kamui eventually going from hero to zero with his fatal blow to Jenson Button. Nico Rosberg also suffered retiring on the second lap.
With the order settled, many were brave to try a one-stop strategy. But with the right front degradation a concern, it wasn’t realistic. Perez, Hamilton and Pastor Maldonado tried this, but to no avail as they eventually fell behind.
For Lewis, things were going from bad to worse. Hinting at the win prior to the start, the Brit soon found himself struggling with grip and downforce. Slipping down the field rapidly, he caught astro-turf on his barge board topping it all off. With a one point to show for a second row start, his decision to switch to Mercedes seems vindicated.
In the mix of all his frustrations, the hunter became the hunted. Even ‘nutcase’ Romain Grosjean managed to keep a calm lid as he worked his way up the order.
With not much action throughout the race Sebastian Vettel sealed another processional win, despite concerns over his tyre degradation.
The title fight is now between Alonso and the German. But, with him and the Red Bull finding their form at the just the right time, it’s hard to see anyone taking Vettel’s crown this year.
Follow us on Twitter @Formula1fancast for the latest news and blogs