[3] Evernham later stated in an interview with Forbes that the poor television ratings for the third season was the primary market factor for the cancellation of the series.

[4] On March 22, 2024, the Skip Barber Racing School announced that it had acquired the series and is forming a plan for a 2024 season.

[12] SRX cars were completely designed by founder Ray Evernham and were in concept stage when the series was founded in July 2020.

[15] The cars use naturally aspirated Ilmor V8 396 cui engines, which are primarily featured in the ARCA Menards Series, with components from Edelbrock,[16] while brakes are provided by Performance Friction Corporation (PFC).

[20] In addition to those running the full schedule, the series provides a "Rocky Balboa" car for a local champion at each track and a "ringer" entry for notable drivers making cameo appearances.

[21][22] The drivers for the inaugural SRX season included Tony Stewart, Bobby Labonte, Hélio Castroneves, Ernie Francis Jr., Paul Tracy, Bill Elliott, Willy T. Ribbs, Michael Waltrip and Marco Andretti for all six races.

Part-time drivers and Local Legend drivers include: Tony Kanaan, Hailie Deegan, Greg Biffle, Scott Speed, Doug Coby, Brian Brown, Scott Bloomquist, Kody Swanson, Luke Fenhaus, Chase Elliott, Matt Kenseth and Kyle Busch Races are primarily held on half-mile dirt and asphalt short tracks.

[24] Two 12-minute heat races take place before the feature; the final lap begins when time runs out and the leader crosses the start/finish line.

[27] Bestwick, Yocum, Daugherty, and Czarniak returned for the 2022 season, while 2021 driver Willy T. Ribbs joined the broadcast team as an analyst.