Marlboro Ducati's Casey Stoner marmalised his own lap record during MotoGP testing at Brno today, lapping a nearly a second faster than his own circuit record.

And the Aussie was only one-tenth slower than Valentino Rossi's pole record, set in 2006.

Stoner was evaluating Bridgestone tyres plus new chassis and electronic settings on his Desmosedici GP8.

"It has been a really positive day. We didn't have too much to test - a couple of new tyres and that's about it - but we managed to find a new setting to improve on what was already a very good situation," said Stoner.

"I managed to drop my lap times by almost a second on yesterday and that's really positive. Unfortunately my physical condition on Friday and the rain on Saturday meant that we didn't head into the race in the best possible shape.

"In any case I'm happy because the things we've improved today will be useful for the upcoming races. Hopefully the weather's good to us again tomorrow so we can finish the job off with Bridgestone."