By 2011, there was speculation that after his NASCAR career was over, Robby Gordon would bring back the concept of stadium off-road racing that
Mickey Thompson had invented. Gordon announced the formation of the Stadium Super Trucks (SST) on May 29, 2012, modeling the series after Thompson's
MTEG stadium series; early in his career, Gordon won the 1989 MTEG championship as a 20-year-old. The trucks held an exhibition race at
Crandon International Off-Road Raceway after the conclusion of the World Championship races on September 2. The Stadium Super Trucks began with a twelve-race season in
2013. The race was won by
Rob MacCachren,
Justin Matney finished second, and Gordon passed the flipped-over truck of
P. J. Jones on the final lap for third. Gordon and MacCachren battled throughout the 2013 season, and Gordon won the championship by seven points. As support events, the series scheduled
monster trucks, quad bikes and
Side by Side UTVs. On March 4, 2014, the series was renamed to
Speed Energy Formula Off-Road presented by Traxxas with the trucks retaining the SST name, though the Formula Off-Road branding was quietly reverted by 2016. The series' X Games final was held at
Circuit of the Americas on June 8.
Apdaly Lopez won the gold medal;
Sheldon Creed and Gordon earned silver and bronze, respectively. The 2014 season also saw the series expand outside the United States and Canada by participating at the
Race of Champions in
Barbados. In 2016, SST held the Mike's Peak Hill Climb Challenge at Mike's Sky Rancho in
Baja California. Beyond North America, the trucks had demonstrations in the
Mongolian desert in 2016 and 2019, while the 2017 schedule included a race in China at
Beijing National Stadium. In 2015, the series entered a partnership with
all-terrain vehicle manufacturer
Arctic Cat, which led to the creation of the Arctic Cat Stadium Side-by-Side (SXS) Racing Series as a support series to the SST. Although stadiums were gradually phased out in favor of street courses, SST returned to the former in December 2017 with the inaugural Stadium Super Trucks World Championship Finals in California's
Lake Elsinore Diamond baseball park. Although he did not compete in the weekend due to a rib injury,
Paul Morris clinched the 2017 championship with
Jerett Brooks driving his No. 67 truck. During the 2018 season, SST organized the Robby Gordon Off-Road World Championships at
Glen Helen Raceway from November 30 to December 2. To close out the season, SST returned to the Race of Champions in
2019, now held in Mexico City, as both a competing category for ROC drivers and a standalone points race.
Matthew Brabham ended the season with his first series championship. In March 2021, SST partnered with the newly formed
Great American Shortcourse (GAS) series to organize a championship weekend and the Off Road Race of Champions (ORROC), the latter of which was to take place at
King of the Hammers; ORROC intended to have GAS class champions compete in stadium trucks with the winner receiving a full-time seat in SST for the 2022 season. However, neither took place due to scheduling conflicts such as Gordon racing in the
Baja 1000 and running his Speed UTV company.
Racing in Australia With the support of driver
Craig Dontas and former
Adelaide 500 general manager Nathan Cayzer, SST expanded into Australia for the 2015 season. In May, the trucks were invited to the
Goodwood Festival of Speed in England. In May 2018, Gordon formed a three-year partnership with
Boost Mobile to keep the series in Australia beyond 2019. As part of the agreement, the series' Australian operations were handled by Cayzer and Morris'
Paul Morris Motorsport. On October 11, judge
John Digby ruled in favor of CAMS. Six days after the ruling, the series aligned with the
Australian Auto Sport Alliance's
Australian Motor Racing Series (AMRS) to remain in the country. The AASA, which is not affiliated with CAMS, and the
NSW Sport and Recreation approved SST for competition in AMRS events following a risk assessment. The trucks' first race weekend under the AMRS banner took place nine days later at the
Sydney Motorsport Park. On August 20, 2019, CAMS and SST announced they had reached an agreement to lift the ban and form a three-year commercial rights contract. Six days later, Adelaide 500 officials confirmed the series would make its return at the 2020 edition in February with safety improvements like smaller ramps. SST's first race in Australia since the ban's conclusion took place in October 2019 with the
Gold Coast 600 weekend at
Surfers Paradise Street Circuit. Following the series' return, the trucks' identity in the country became known as the
Boost Mobile Super Trucks. The Boost Mobile Super Truck operations were based at Paul Morris Motorsport's Norwell Motorplex in
Norwell, Queensland. Supercars was acquired by Race Australia Consolidated Enterprises in 2021, and the new ownership failed to reach an agreement with the Boost Mobile Super Trucks to continue supporting the series for 2022. Boost Mobile head Peter Adderton, who attempted to buy Supercars, criticized RACE and claimed the consortium saw little value in the trucks despite their popularity. 12 stadium trucks were returned to the United States on January 19, 2022. Conversely, new Supercars CEO Shane Howard told
Auto Action in February that he believed the trucks were sent back due to
ATA Carnet import laws, but he was open to bringing them back in 2023. A return was secured for the 2024 Adelaide 500. SST and Motorsport Australia clashed again during the weekend when two accidents in practice led to a hearing with the federation. The series was eventually cleared to proceed with the round, though with its four-race slate reduced to two. The series did not return to Australia in the 2025 season. ==Drivers==