Clear Channel Entertainment's Motor Sports division and Dorna Off Road announced today the two international rounds of THQ World Supercross GP that comprise the 17-race world championship: Toronto at SkyDome on December 4 and Vancouver, B.C., at BC Place on December 11.SkyDome, which is home of Major League Baseball's Toronto Blue Jays, boasts the world's first fully retractable roof that opens and closes in 20 minutes and covers more than eight aches of property. At full capacity, SkyDome holds 65,000 fans spread out over five levels of seating. In addition, there are seven bars and restaurants conveniently located inside SkyDome, including a Hard Rock Cafe overlooking the field. Since opening June 3, 1989, more than 2000 events and 50 million visitors have come to SkyDome."Toronto and Vancouver are perfect markets for the international rounds of THQ World Supercross GP," said Charlie Mancuso, President of Clear Channel Entertainment's Motor Sports. "By scheduling these races in such close proximity to the United States, we expect to have full participation from all of the top riders. We recognize the demanding schedule of the factory teams and privateers and that was a priority in our scheduling efforts this season."Additionally, Toronto and Vancouver offer the teams, riders and sponsors very attractive branding and marketing opportunities. The two Canadian events add diversity and creativity to the THQ World Supercross GP schedule that will be aired worldwide through the Dorna Global Television Distribution network. The proximity of Toronto and Vancouver to the United States' border also offers fans two additional chances to see the top Supercross riders in the world and finally provides a Supercross event in the Northeast—something fans have been anticipating for a long time."The two international races coupled with 15 of the domestic races (excluding the Daytona Supercross) comprise the 17-round THQ World Supercross GP. In 2003, Yamaha's Chad Reed of Dade City, Fla. won the THQ World Supercross GP championship, capturing nine main event wins for the year. Last season Heath Voss of Mico, Texas piloted his Mach 1 Yamaha to the THQ World Supercross GP Championship, earning top honors and giving Yamaha its second World Championship.For more information, please log on to www.supercross.cc.com. For tickets log onto www.supercross.cc.com, www.ticketmaster.com, www.tickets.com (San Francisco only) or www.unlvtickets.com (Las Vegas only).