Chris Vermeulen has already won three races in a row this season, but will he be able to unsettle the lead pairing of James Toseland and Regis Laconi in the next World Superbike Championship race on Sunday?

Chris Vermeulen has already won three races in a row this season, but will he be able to unsettle the lead pairing of James Toseland and Regis Laconi in the next World Superbike Championship race on Sunday?

Some outstanding and committed riding from Toseland at Laguna Seca earlier this month saw him retake the championship lead from his Ducati Fila team mate, Regis Laconi. But the partnership's almost season-long lead has been dramatically trimmed with Ten Kate Honda's Chris Vermeulen posing the biggest threat.

Having won the last three races in a row - and just 14 points off the lead - Vermeulen is now hinted to take the fight to the very last race in France.

Lying fourth overall, Japanese rider Noriyaki Haga has been riding his Renegade Ducati at the front of the pack for most of the season. Haga is an old hand in racing at the Brands Hatch circuit but recent track revisions may cause an upset. Team mate Leon Haslam is enjoying a brilliant season having already taken an podium finish this year.

The most experienced rider in the series' history, Pierfrancesco Chili, finished second at the last outing and will be joined this Sunday by Giancarlo De Matteis.

Chris Walker and former champion Troy Corser will be hoping to repeat their earlier performances on their three-cylinder Petronas FP-1 while wild-card James Ellison makes his second appearance this season for Jentin Yamaha.

In the World Supersport races, Ten Kate Honda's Karl Muggeridge leads the championship after a superb run of three wins and a second place at the most recent round at Silverstone.

Yamaha Italia's Jurgen van den Goorbergh has a single win this year, but in a clear second place he is most likely to threaten the leader's advantage.

Despite some problems setting the all-new Suzuki GSX-R600 Stephane Chambon is the most successful WSS rider ever at Brands, and another Frenchman, second Yamaha Italia rider Fabien Foret is a proven force at Brands, and is also the most recent race winner of all this year.