Ryan Sieg (born June 20, 1987) is an American professional driver. He currently competes full-time in the NASCAR Xfinity Series, driving the No. 39 Chevrolet Camaro for RSS Racing. He is the younger brother of driver Shane Sieg.

Sieg made his NASCAR debut in 2009, competing in the Camping World Truck Series Kroger 250 at Martinsville Speedway. Driving the No. 21 Dodge for GunBroker Racing, Sieg started 16th but finished 34th due to an ignition problem. At The Milwaukee Mile, he would start a partial schedule for his family-owned race team. In nine races, Ryan recorded six top-20 finishes including a finish of 9th at Gateway International Raceway.

For 2010, Sieg and his brother Shane both planned to run the full Truck Series schedule in the No. 39 and No. 93 trucks, respectively. Despite having no major sponsorship, Sieg was able to run the entire season, finishing 21 of the 25 races and earning two top-10 finishes, including an 8th at Kentucky Speedway and a 9th at Dover International Speedway.

On June 10, 2011, Sieg finished 7th in the WinStar World Casino 400K at Texas Motor Speedway, marking his best career finish in his 44th start in the Camping World Truck Series. He also led ten laps earlier after staying out on a pit stop. At the September 2 Truck Series race at Atlanta Motor Speedway he piloted his No. 39 RSS Racing Chevy to a 15th-place finish.

For 2012, Sieg led six laps at the Charlotte Motor Speedway race after staying out on a pit stop during a caution. He ran the final three laps in 3rd position before finishing in 15th after running out of fuel on the last lap at Michigan International Speedway on August 18, marking his best final-laps position in the Camping World Truck Series. He would later score a 6th-place finish at Phoenix.

...
Wikipedia