All 12 races on the 2010 Grand-Am Rolex Sports Car Series presented by Crown Royal Cask No. 16 schedule will be televised live on SPEED, Grand-Am officials announced today.

The NASCAR-owned sports car sanctioning body says its 2009 season on SPEED increased its viewership 42 percent, and that the number of households watching the races increased 39 percent over the 2008 season.

The 2010 Rolex Series campaign opens with the 48th Rolex 24 at Daytona on Saturday, Jan. 30. SPEED coverage begins at 3 p.m. ET, prior to the 3:25 p.m. ET green flag, and lasts until 11 p.m. ET. Coverage resumes at 7 a.m. ET and will run to the finish at 4 p.m. ET.

In addition, eight of the 10 Grand-Am KONI Sports Car Challenge races will be televised on SPEED next season.