Local and regional racing in 2016. Decker won four karting championships in two years. She began racing in 4-cylinder modified stock cars as a 12-year-old; Decker began racing in the
ARCA Midwest Tour and took the 2013 Rookie of the Year by finishing third in points.
NASCAR and ARCA Decker was one of seven drivers to compete in the 2016
Alan Kulwicki Driver Development program; she was awarded $7,777. Decker joined her cousins
Paige Decker and
Claire Decker in attempting to make the field for the
Alpha Energy Solutions 250 at
Martinsville Speedway on April 2, 2016. Decker made her ARCA debut at
Toledo Speedway. After spending much of the race in the top-ten, she finished eleventh on the lead lap. in the
2018 ARCA Racing Series. Venturini later announced that they had signed Decker to drive the full 2018 ARCA schedule. Decker began the season by winning the pole at the season opening race at Daytona; she would finish fifth in a crash-filled race. Later on in the season, she was injured via hernia, and was forced to start the race and have
Brennan Poole jump in, in which he would finish the race in eighth. She finished the season seventh in point standings, which was last among drivers who competed in every race. On November 30, 2018,
DGR-Crosley announced plans for Decker to run a partial
Truck Series schedule for the team in the 2019 season, along with some ARCA and K&N Pro Series events. in the
2019 NASCAR Camping World Truck Series. Decker's Truck series debut at
Daytona saw her No. 54 Toyota cut a left front tire and rupture an oil line, setting the truck on fire on the first lap. At
Kentucky Speedway in July, Decker was involved in an on-track incident with
Spencer Boyd, eliminating both drivers from the race. Later, in the truck garage, Decker took Boyd’s hat off his head and slammed it on the ground before being verbally warned by a NASCAR official stating "that's enough". She was escorted away by her team. Decker signed with
Niece Motorsports for the
2020 season. On February 14, 2020, she finished fifth at Daytona, becoming the highest-finishing female driver in Truck Series history. She missed the
Pocono race after being hospitalized for bile duct complications related to her gall bladder surgery in December 2019. On September 25, Decker was not medically cleared to race at
Las Vegas after experiencing a high heart rate and high blood pressure; because her truck had cleared inspection and was placed on the starting grid, she was credited with a last-place finish in the race. Decker later pinpointed high blood pressure as the cause for fatigue, but with a deeper cause undetermined, she also missed the following race at
Talladega Superspeedway, where
Kaz Grala took the seat. On February 5, 2021, it was announced that Decker would make her debut in the
NASCAR Xfinity Series in
2021, driving the No. 23 for
RSS Racing/
Reaume Brothers Racing in at least five races beginning at the
Daytona Road Course with sponsorship from Red Street Records, who will highlight the musicians they work with on the car,
Jason Crabb being one of them. She remained in the No. 23 after
Our Motorsports assumed operations. In 2022, she attempted the Daytona season-opener with the No. 33 for
Reaume Brothers Racing, but failed to qualify. However, she did qualify for the April Martinsville race, driving the No. 28
RSS Racing Ford in a collaboration with RBR. She also failed to qualify for the spring race at
Talladega driving the No. 13 for
MBM Motorsports. Decker was also going to run the race at Daytona in August, driving the No. 5 for
B. J. McLeod Motorsports. However, her sponsor, Diesel Beverages, was not approved in time for the race. Diesel Beverages is a hemp/CBD product, which NASCAR had to examine to determine if it would be approved as a sponsor. She would be replaced in the car by
Patrick Emerling. Decker stated that she hoped to run a different race later in the season if the sponsor is approved. On February 8, 2023, it was announced that Decker would drive part-time for
Emerling-Gase Motorsports in the Xfinity Series and the ARCA Menards Series in their No. 53 car in both series. It would be her first ARCA start since 2020 as well as EGM's first time fielding an entry in ARCA. in the
2024 NASCAR Xfinity Series. On February 7, 2024,
DGM Racing announced that Decker would drive their No. 36 car in the Xfinity Series season-opener at Daytona. Decker was also going to drive the same car at Talladega in April, but like at Daytona in August 2022, had a sponsor that was not approved by NASCAR. As a result, DGM withdrew the No. 36 car, and she did not get to run that race. She would make another start for the team at Charlotte in May in their No. 92 car.
Other racing On January 30 and 31, 2018, Decker tested a
LMP3 sports car at
Sebring International Raceway. The car was fielded by longtime Decker family friend
Tony Ave. Ave wanted her to drive his car after he was impressed by her performance in the 2017 Road America ARCA race, where she finished seventh, which was her best finish of the season. In 2019, Decker is scheduled to race in five events for Ave's Trans Am team. She finished ninth in his TA car at
Sebring International Raceway. Decker was among the preliminary participants for the
2019 W Series. After making the initial cut from 55 drivers to 28, she did not survive the next round of cuts. Decker was scheduled to make her
Trans-Am SGT class debut at
Road Atlanta with Ave Motorsports in November 2020, but was forced to miss the race after testing positive for
COVID-19. In 2021, Decker raced several times for Ave in the
Trans-Am Series. She took the SGT pole position in March at the Charlotte Roval and finished second in the race. She also finished second at Watkins Glen. She won the race at the
Circuit of the Americas and won the SGT ProAm Challenge Title. ==Personal life==