Sergio Perez showed his credentials as a potential GP2 Asia Series champion with a second win of the season in the sprint race at Losail.

Having finished on the podium in the feature race, the Campos Racing ace made a stunning start from seventh on the grid to head into turn one in second place behind Vitaly Petrov, and then made a move on his team-mate at the start of lap two to hit the front.

From there, the Mexican remained out front to the finish as Campos secured a 1-2 finish and has now climbed to fourth in the championship standings.

"I was a little bit surprised when I saw that everything went perfectly [on the start]," he said. "I made a good start, but everybody moved to the right and I was so quick on the left side. I was really close to crashed into Luis Razia because I don't think he saw me there. He moved a lot into the left and I almost got into the grass, but then when I braked, I realised that I was second behind Vitaly. Then I tried to keep my position on the outside and came out of turn one in P2.

"Vitaly was leading. It was a big surprise for me to be second. I was really close to him already in the first corner, but I just tried to maintain my position and to make sure I was getting the second place.

"In the first lap, Vitaly had a good pace in the first and the second sectors. But in the third sector, he came a bit slow out of the corner and I got a really good exit and I tried on the first lap and he didn't push enough to block me. Clearly, he didn't want to make a mistake: we knew it was only the first lap and we didn't want to crash. Still, I saw the opportunity and I took it. After that, I tried to manage my tyres because we learnt from yesterday that the tyre degradation is very important here and I could manage very well because I was leading. So, I did what I wanted to do and it worked really well."

With Kamui Kobayashi and Roldan Rodriguez failing to score, Perez has closed the gap the leaders ahead going into the next round in Malaysia, but he said he wasn't thinking about the title.

"I don't know how close I am to the leaders, but I will keep my strategy and approach each weekend one by one," he said. "I will try to win again in Malaysia and keep the momentum. I will work as hard as possible to score as many points as possible.

"In the end, if I can win the championship I will be very happy."