AJ Allmendinger

Tony Stewart will start from pole position in Sunday's NASCAR Sprint Cup Series race at Pocono after rain forced qualifying to be cancelled for the fifth time this season.

ORECA driver Nicolas Lapierre claimed pole position for Saturday's Le Mans Series enduro at the Autodromo Internacional do Algarve in Portugal. The Frenchman came out on top in a closely-fought qualifying session in which the top five cars were separated by just over a half a second. Lapierre's pole time of 1m32.020s aboard the lead ORECA-AIM 01 was just over one tenth of a second quicker than Stefan Mucke's best in the 007 Lola-Aston Martin.

Red Bull drivers Brian Vickers and Scott Speed swept the front row of the grid for the first time in their team's history in NASCAR Sprint Cup qualifying at Chicagoland Speedway

For the second week in a row and for the third time this season, rain has given points' leader Tony Stewart pole position, this time for the Coke Zero 400 at Daytona International Speedway. Qualifying for Saturday night's event was scheduled for Friday afternoon but rain halted Nationwide Series qualifying with only two cars left to complete their runs, and officials decided to allow time for the track to be dry in order to resume the session. However, with the schedule being pushed back due to the wait and the Nationwide Series race planned for later in the evening, it was decided to cancel Sprint Cup qualifying

Valentino Rossi grabbed the fastest time in Friday practice for this weekend's MotoGP USGP at Laguna Seca as the Yamahas usurped Casey Stoner in the closing stages

Guillaume Moreau is set to complete the Formula Renault 3.5 Series season with the SG team, having returned to the championship from this weekend's Silverstone races. The 26-year-old Frenchman drove for KTR in the series for the past two years, winning at Magny-Cours in 2007, but had concentrated on his GT racing programme with Luc Alphand Aventures in the first half of 2009.

1992 Formula 1 world champion says he will test a Le Mans prototype soon, too

James Walker dominated Friday's pair of free practice sessions at Silverstone ahead of round five of the Formula Renault 3.5 Series.