Starting racing when he was six, Hill climbed the ladder racing various disciplines such as Legend cars and Bandolero racing.
K&N Pro Series East After driving sporadically in
2012, Hill captured a win in
2013 despite only running five races that season. His first full season in the series (
2014) started slow but ended well, winning the final two races to finish fifth in the points. Hill continued his career in the
K&N Pro Series East with a strong
2015 season. Driving for a family-owned team, he captured a pole, two wins, and failed to finish only once in a season that left him third in points. After switching his focus to the
Camping World Truck Series in
2016, he only ran one race in the series, finishing ninth.
ARCA Menards Series Hill debuted in the
ARCA Menards Series at the 2015 season opener, avoiding wrecks to finish just outside the top ten at
Daytona International Speedway. Hill returned to the
ARCA Menards Series in
2021. During his
Truck Series off weekend, he drove in the race at
Mid-Ohio Sports Car Course in preparation for the Truck Series road course races later in the season. He drove for his Truck Series team,
Hattori Racing Enterprises, in their No. 1 car.
Craftsman Truck Series in the
2019 JEGS 200 Hill debuted in 2014 with
RBR Enterprises, with finishes of 26th at
Martinsville Speedway and twentieth at
Homestead-Miami Speedway during that season. Hill landed a part-time ride with
Empire Racing in the 2014 season, crashing at
Daytona International Speedway and recording a best finish of sixteenth (at
Dover International Speedway) in three other starts that year. For the start of 2016, Hill announced that he would again run the Daytona race with Empire, and then switched to his family-owned
Austin Hill Racing for a part-time schedule. He failed to qualify for Daytona and four other races early in the season and had a best finish of fifteenth through the twelfth race of the year. Picking up his schedule after that and running some races in an entry bought out from
Young's Motorsports, Hill started to experience more consistent success, leading up to his first top-ten, a tenth place at
Martinsville Speedway. Hill formally became a part of the Young's team in 2018, running a full season for the team and grabbing a top-five finish at
Texas Motor Speedway. Hill later said that when he joined the team, he figured it would be a long-term arrangement, not just a year. On January 8, 2019, it was announced that Hill joined
Hattori Racing Enterprises' No. 16
Toyota Tundra full-time for the upcoming season. The arrangement was made after crew chief Scott Zipadelli reached out to Hill after previous driver
Brett Moffitt departed the team. At
Pocono in July, Hill set a new track record for the Truck Series on his way to the pole. He won the regular-season finale race at Michigan for his second career win, and won again at the playoff race at Las Vegas, advancing his team to the Round of 6. Hill failed to advance to the Championship 4, but won the finale at Homestead, finishing fifth in final points. On November 5, 2019, HRE announced that Hill would remain in the No. 16 for the
2020 Truck Series season. He qualified for the playoffs and advanced to the Round of 8 with a win at Las Vegas. An Ilmor engine failure at
Martinsville ended the team's playoffs in the second round. On October 30, 2020, Hill was confirmed for a third full season with HRE.
O'Reilly Auto Parts Series On June 16, 2019, it was announced that Hill would make his
NASCAR Xfinity Series debut at the
Circle K Firecracker 250 at Daytona for
Hattori Racing Enterprises, driving the No. 61
Toyota Supra. However, he missed the race after his car suffered
drive line issues that prevented him from setting a qualifying time. Later debuting at
Indianapolis Motor Speedway, Hill used the high groove to his advantage on his way to scoring a ninth-place finish in his series debut. Hill and HRE continued their part-time Xfinity schedule in 2020, starting with the season opener at Daytona. On October 30, Hill was confirmed for a 2021 part-time return to the No. 61 machine. On October 29, 2021, Hill was announced as a full-time driver for
Richard Childress Racing. He scored his first career win at Daytona after passing
A. J. Allmendinger on the final lap of the race. The end of the race was marred by a vicious last lap wreck that sent
Myatt Snider into the backstretch catchfence. Hill led the most laps and scored his second career Xfinity win at his home track of Atlanta in July. Hill was eliminated from the Xfinity Playoffs following the Round of 8 after finishing ninth at
Martinsville as a result of a collision with Snider. Following the race, Hill punched Snider in the face on pit road. At the end of the season, he finished sixth in the points standings and won the 2022
NASCAR Xfinity Series Rookie of the Year honors. in 2023 Hill began the
2023 season by winning his second straight season opener at
Daytona. He also scored wins at
Las Vegas,
Atlanta, and
Pocono. In
2024, Hill made history by winning his third straight season opener at
Daytona. In the next round at
Atlanta, his team used fuel strategy to help him take his second win in a row. At
Charlotte, Hill and
Cole Custer were trading paint on the frontstretch for fifth place when contact blew a right front tire on Hill's car. He crashed in turn 1 and collected Custer. Hill, showing his displeasure with how he was raced, locked bumpers with Custer's car and left-reared Custer's damaged car on the backstretch, which sent him into the inside wall. As a result, Hill was fined 25,000 and docked 25 points. Later in the year, Hill won his third race of the season at
Atlanta. During the playoffs, he won at
Homestead to make the Championship 4. in 2025 Hill started the
2025 season with a 33rd-place DNF at
Daytona. A week later, he rebounded with a win at
Atlanta. Hill also scored wins at
Martinsville and
Talladega. At
Indianapolis, Hill was penalized five laps for intentionally right-rear hooking
Aric Almirola to the outside wall. Hill was then issued a one race suspension by NASCAR for the incident, and lost all 21 playoff points previously accumulated. After getting eliminated during the first round of the playoffs, he won at
Talladega, sweeping Talladega for the season. Hill started the
2026 season with another win at
Daytona after dominating the night.
Cup Series On August 2, 2022, RCR announced that Hill would make his Cup Series debut in the No. 33 at
Michigan. Hill attempted to make the
2023 Daytona 500 with the
Beard Motorsports No. 62, but he failed to make the field after a late crash resulted in an eighteenth-place finish in Duel 2 of the
2023 Bluegreen Vacations Duels. On April 5, 2024, RCR announced that Hill would race in the No. 33 for multiple races starting at
Texas. On March 24, 2025, RCR announced that Hill would run in the No. 33 for multiple races starting at
Darlington. He scored his first career Cup top-ten with a ninth-place finish at the
Chicago street race. ==Personal life==