Repsol Honda's Nicky Hayden has topped the timesheets during both free practice sessions at Valencia's MotoGP round today, with team-mate Dani Pedrosa right behind him.

The American was the best part of a second faster than Marlboro Ducati's Casey Stoner this morning in monsoon conditions and was the only man to go under a 1'48s lap time.

Stoner, meanwhile, had a huge highside mid-way through the session but although is was fast, he didn't fall far and slid a long way before tumbling into the gravel.

This afternoon, Hayden was just a little under a tenth faster than Pedrosa with Fiat Yamaha's Jorge Lorenzo third and Valentino Rossi, who crashed with 18 miinutes to go in fourth.

Stoner started the session fastest, immediately going under Hayden's time from this morning, posting a 1'47.134 with seven minutes gone. However, the track had significantly less water on it despite a light shower before the session started.

Hayden hovered around the top three for the whole hour, initally swapping places with Rizla Suzuki's Chris Vermeulen, Shinya Nakano and Rossi. The Doctor went fastest on the half hour with a 46'070 but Hayden stole it two minutes later with a 1'45.777.

This proved to be fast enough for Hayden but it didn't stop him trying and he was half a second under his fastest time with five minutes to go when a big slide ruined a quicker lap.

Pedrosa went second with 20 minutes remaining with Lorenzo stealing third with two minutes left. Despite his crash Rossi remained in fourth, heading the second row of the grid. Stoner finished fifth.

Britain's James Toseland was struggling with setup, swapping bikes throughout the session, but results didn't come and he ended 16th.

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