From a 2013 Xfinity debut with Ryan Sieg to a 2026 Daytona win in the No. 38, RSS Racing has changed engines, chassis and manufacturers while staying in the O'Reilly Auto Parts Series.
A family-owned Sieg team, run by Rod and Pamela Sieg, which switched from Ford back to Chevrolet in 2025. It recorded its first series win at Sonoma in 2023 and its second at Daytona in 2026, and it has run three cars at most.
RSS Racing, short for Ryan Scott Sieg Racing, is an American stock car team that competes in the NASCAR O'Reilly Auto Parts Series. It is owned by Rod Sieg and Pamela Sieg, and its current line-up is three Chevrolet SS entries: the No. 28 for Kyle Sieg, the No. 39 for Ryan Sieg, and a part-time No. 38. The team has a technical alliance with Haas Factory Team.
Family runs through the operation. Ryan and Kyle Sieg have been among its most regular drivers, and the team's history is one of steady, low-budget progress: changes of engine supplier, chassis source and manufacturer, plus a string of partner entries that came and went. Its first series win arrived in 2023, and a second followed at Daytona in 2026.
How did the team's equipment change over time?
Until Kevin Harvick Incorporated (KHI) closed, RSS bought its rolling chassis from it. Earlier it had used Earnhardt Childress Racing engines, but from 2013 to 2018 it ran Pro Motor Engines units. In 2019 the squad struck a fresh arrangement with ECR Engines and bought chassis from Richard Childress Racing over the off-season.
From 2021 the team ran Ford Mustangs fitted with Roush-Yates engines. In November 2025 it switched back to Chevrolet, keeping its technical alliance with Haas Factory Team in place. The Chevrolet switch brought the team back to the make that most of its later cars have carried.
A family-run Xfinity team that has built its record on its own chassis, engines and drivers, and which won its series race at Daytona in 2026.
How did Ryan Sieg's career with the No. 39 begin?
The No. 39 was RSS's first Xfinity Series entry. Ryan Sieg, son of owner Rod Sieg, drove it in three races in 2013, finishing 24th at Indianapolis and 21st at Kansas before withdrawing at Atlanta. In 2014 he first ran for Truck Series points, then declared for Rookie of the Year and moved his points over to the Xfinity Series.
The 2014 season brought a penalty after the Treatmyclot.com 300, when the car was found to have too high a maximum rear body height. Crew chief Kevin Starland and car chief Timothy Brown received probation, and Starland was fined $10,000. The team recovered quickly. Sieg finished ninth at Daytona, and then took third there for his first top five, helping push Kasey Kahne to victory. He finished sixteenth in points.
For 2015 Sieg came back, with Uncle Bob's Self Storage as sponsor. He finished 11th in points and took an eighth at Kansas. In 2016 he added a third at Daytona in July, but the team missed the Chase after Round 1.
What were Ryan Sieg's best seasons with the team?
His 2017 season dipped to 15th in the standings, though he had a career-best second-place finish at the June Iowa race, behind William Byron. Stephen Leicht drove the final race at Homestead so that Sieg could take the No. 93 for owner points.
In 2018 J. J. Yeley finished 18th in the No. 93 at Daytona, and Sieg took over at Atlanta. In his next five races he recorded two top-twenty finishes and no DNFs, with an 18th at Texas as his best. He later ran 25 more races, posting nine top-twenty finishes and a sixth at Talladega, plus a ninth at Kansas.
In 2019 Sieg drove every race except New Hampshire, where C. J. McLaughlin drove. He posted 25 top-twenty finishes and eleven top-10s, with one top five: a fourth at Daytona in February. Before 2020 the team announced that Sieg would drive the No. 39 full-time, with CMR Construction and Roofing as primary sponsor.
How did the 2020 and 2021 seasons go for the No. 39?
In 2020 Sieg recorded seven top-five finishes and eleven top-10s, along with four DNFs. He reached the round of eight in the playoffs but missed the championship four, and finished tenth in points. CMR returned for 2021.
Sieg started 2021 poorly, with three DNFs in his first five races. His only top-twenty finish in the early part of the year was an eighth at Homestead-Miami. After the Indianapolis race in August, crew chief Shane Wilson was suspended for four races when a tyre problem brought out a caution. RSS chose to release Wilson rather than appeal the penalty. For the championship at Phoenix, Kyle Sieg drove the No. 39 while Ryan took the No. 38.
Why did the No. 39 change sponsors in 2023?
CMR returned in 2022, but at the 2023 Pennzoil 150 Sieg's car was no longer carrying that sponsor. From the Wawa 250, SciAps became his primary sponsor, and the deal ran into 2024. Sieg scored three top-10 finishes and finished 20th in points.
The 2024 season began with a 22nd at Daytona, and at Texas Sieg lost to Sam Mayer by just 0.002 seconds. After Talladega in the fall, Ryan and Kyle Sieg swapped numbers, so Kyle drove the No. 39 for the rest of the year.
What did the 2025 and 2026 seasons bring for Sieg?
Sieg started 2025 with a 19th at Daytona. Before the Phoenix championship race, Haas Factory Team announced that he would replace Sam Mayer, who had been suspended for the weekend. Kyle Sieg then drove the No. 39 in the final race of the season.
In 2026 Sieg started with a third-place finish at Daytona. At Iowa he won his first pole position. Andy Jankowiak was named on 18 August to make his series debut for the team at the summer Daytona race.
What is the No. 28 history?
Kyle Sieg drove the No. 28 Ford part-time in 2022, the same number he had driven in ARCA the year before. C. J. McLaughlin, Patrick Gallagher, Natalie Decker and Alex Labbe also drove the car across the season, and Gallagher finished 22nd at COTA. Labbe took the No. 28 at the Production Alliance Group 300 and the Alsco Uniforms 300 while Sieg drove the No. 38.
The No. 28 changed hands among Kyle Sieg, Alex Labbe, Aric Almirola and Brent Sherman in 2023, and Almirola then won the first Sonoma Xfinity race, RSS's first series victory. Kyle Sieg returned to the car full-time in 2024, and Kaz Grala failed to qualify at COTA. In the fall, Ryan Sieg swapped numbers with Kyle and took over the No. 28 for the remainder of the season.
Kyle Sieg continued in the No. 28 in 2025. At Portland Joey Hand drove the car to 19th. Kyle started the 2026 season with a 15th at Daytona.
What were the No. 29 and No. 37 entries?
In 2023 Kyle Sieg was due to drive a fourth entry, the No. 29, at Sonoma, because Almirola had a one-race deal in the No. 28. Alex Labbe later took the No. 29 instead. On 18 December 2023 Blaine Perkins was announced to run full-time for RSS in 2024 in the No. 29.
In 2025 J. J. Yeley tried to qualify the No. 29 at Daytona but missed the race, and Jake Garcia failed to qualify at Talladega for his Xfinity debut. Earlier, in 2018, J. J. Yeley and Jeff Green had start-and-parked the No. 37 car at Kansas and Homestead.
How did the No. 38 become a full-time car?
Gray Gaulding drove a No. 38 entry at Dover in 2017, start-and-parking the car. The team became full-time in 2018, when Jeff Green started the season opener and finished 11th, the best result for the No. 38 that year. Yeley then took over, finishing 21st at ISM Raceway and 34th at Auto Club Speedway.
In 2022 Patrick Gallagher, Darren Dilley, Will Rodgers, Ryan Sieg, Joe Graf Jr., Loris Hezemans, Parker Retzlaff, Kyle Sieg and C. J. McLaughlin shared the seat time. Retzlaff, aged 18, qualified sixth in the United Rentals 200 before retiring with a fuel pump problem. Graf drove most of the races in 2023 and finished 30th in points.
What was the Viking Motorsports partnership?
On 12 January 2024 C. J. McLaughlin was named to drive the No. 38 part-time, and after he failed to qualify in two of the first four races, Matt DiBenedetto took over for at least five races. Viking Motorsports, which Don Sackett owns, fielded the entry in collaboration with RSS. RSS supplied the crew chief, crew and hauler, while Viking supplied the driver, car and spotter.
On 13 December 2024 Viking announced a switch to Chevrolet, which ended the partnership with RSS. In 2026 the No. 38 returned at Daytona with Patrick Emerling, who also drove at Talladega and Pocono. Ryan Sieg drove the car at the summer Daytona race and won, giving RSS its second series victory.
What happened with the No. 93 and No. 23?
In 2016 a second, part-time operation was introduced. Scott Lagasse Jr. drove at Daytona and finished 29th. Starr joined the No. 93 on 23 June, with Massimo Motors sponsorship, and the team stopped start-and-parking for the rest of the season. In 2017 the car ran start-and-park with Jordan Anderson, Stephen Leicht, Jeff Green and Gray Gaulding.
In 2020 rookie Myatt Snider drove much of the schedule. In June Reaume Brothers Racing took over the operation for the rest of the year. Snider posted two top-fives, six top-10s and eight DNFs, with a 16th in points. In 2021 the No. 93 was renumbered No. 23 and ran under the Our Motorsports banner.
How did the Truck Series side of the team operate?
The team's Truck Series entries mostly supported the Xfinity effort. The No. 39 truck debuted at Milwaukee in 2009 with Sieg at the wheel. He returned for Atlanta in 2015 and finished 11th. Other Truck entries, such as the No. 27, No. 37 and No. 38, were used as start-and-park trucks. Dennis Setzer drove the No. 27 at Homestead in 2011 when the team's other drivers were busy, but failed to qualify.
The No. 38 truck had its best finish of 33rd in 2012 with Chris Jones and Setzer. In 2013 the truck ran with a group of part-time drivers, with its best finish 29th at both Michigan and Phoenix.
What were the team's key milestones?
| Year | Milestone |
|---|---|
| 2013 | No. 39 makes its first Xfinity start with Ryan Sieg |
| 2014 | Sieg third at Daytona for his first top five |
| 2017 | Sieg second at Iowa, a career best |
| 2021 | Team switches to Ford Mustangs |
| 2023 | Almirola wins the inaugural Sonoma race, RSS's first series win |
| 2025 | Team switches back to Chevrolet in November |
| 2026 | Ryan Sieg wins at summer Daytona in the No. 38; pole at Iowa |
