The NASCAR Whelen Southern Modified Tour (WSMT) was a stock car racing series owned by NASCAR and operated in the Southeastern United States as part of its Modified Division. The Whelen Southern Modified Tour used nearly identical rules as its northeastern-based counterpart the NASCAR Whelen Modified Tour.
In 2017, the series merged with the Modified Tour.
The NASCAR Whelen Southern Modified Tour was established in 2005, after the collapse of the Southern Modified Auto Racing Teams (SMART) organization as part of the breakup of the American Speed Association. Whelen Industries, who sponsors the NASCAR Whelen Modified Tour agreed to sponsor the Southern Tour series, which became the Whelen Southern Modified Tour.
While the Tour itself was a new addition in 2005, NASCAR itself has a long tradition of Modified racing in the Southeastern U.S. Prior to the formation of today’s Northeastern-based Whelen Modified Tour in 1985, NASCAR Modified teams competed in championship events up and down the east coast, including stops at Bowman Gray Stadium in Winston-Salem, North Carolina, North Wilkesboro Speedway and Martinsville Speedway. Top drivers from North Carolina and Virginia, such as Ralph Brinkley, Ray Hendrick and Satch Worley, were regular NASCAR Modified competitors. 
The 2005 inaugural Whelen Southern Modified Tour Championship was won by Junior Miller.
Whelen Southern Modified Tour championsEdit
|2009||George Brunnhoelzl, III||George Brunnhoelzl, Jr.||5||#58||Ford||Oval Speed/Fibrwrap/PT||?|
|2008||Brian Loftin||Loftin Racing||4||#23||Chevrolet||L&R Transmissions||Troyer|
|2007||LW Miller||Baker Racing||5||#36||Pontiac||John Baker Plumbing & Utilities||Chassis Dynamics|
|2006||Junior Miller||Riggs Racing||6||#69||Dodge||Advance Auto Parts||Troyer|
|2005||Junior Miller||Riggs Racing||3||#69||Dodge||Advance Auto Parts||Troyer|
- Atlanta Motor Speedway - Hampton, GA (.25 Mile Asphalt Flat Oval)
- Bowman-Gray Stadium - Winston-Salem, NC (.25 Mile Asphalt Flat Oval)
- Bristol Motor Speedway - Bristol, TN (.533 Mile Concrete High-banked Oval)
- Caraway Speedway - Asheboro, NC (.455 Mile Asphalt Semi-banked Oval)
- Charlotte Motor Speedway - Charlotte, NC (.25 Asphalt Flat Oval)
- Langley Speedway (Virginia) - Hampton, VA (.4 Mile Asphalt Semi-Banked Oval)
- South Boston Speedway - South Boston, VA (.4 Mile Asphalt Semi-banked Oval)
- Tri-County Motor Speedway - Hudson, NC (.4 Mile Asphalt Oval)