Repsol Honda's Casey Stoner threw caution to the wind on the last lap of today's MotoGP finale at Valencia and took some risks to beat Ben Spies to the line by the narrowest of margins in the whole 800cc era.

The newly-crowned champion beat his Yamaha counterpart by 0.015s after squandering a ten-second lead when rain came down hard. He then followed Spies for two laps before deciding to put it on the line for the last half of the final lap to just mug the Texan as they crossed the line.

"When the rain started to come down, I just wasn't too keen, I had the rear come round on me a couple of times so I kept going the way we were going but if they catch and pass, I know I can stay with them - I know I have more pace around here than anyone but I wasn't willing to risk crashing out," said Stoner, speaking to bikesportnews.com.

"The rain kept coming and kept coming stronger, then I made the mistake and Ben came past. I was quite happy to have someone to follow to see what their ear was doing, see how much grip there was and get a good indication of how hard I had to push.

"In the last half of the last lap, I thought I would take some risks and go for it. For the first half, Ben was riding really smooth but in the last half I knew I was faster as I had been the lap before. He took an advantage in first part and I was like, 'let's just finish this one' but then going up the straight I closed on the brakes.

"I haven't taken any risks all year long, I've always kept that last bit in reserve to make sure we didn't do anything stupid and I just decided to go for it. I had a lot of corner speed going up through turn 13 and I was waiting for the bike to come away from me.

"I let the brakes off going through the last turn to get close enough. I took a few more risks than I would have liked. It's the first time I have taken a win from someone on the line, it has happened to me a few times but it's a good feeling."