Karting (2004–2008) Freiberg's earliest racing experience came at the age of ten, when both her elder brothers took up the hobby. At the time, she did not believe girls could compete, but after skateboarding, Freiberg made her
go-karting debut at the age of 13, and her father took her to the Jim Hall Karting School in
Ventura, California in 2004. In December 2004, Freiberg made her national debut in a
World Karting Association (WKA) event at
Daytona International Speedway's road course. Her father supported her financially. In her first season, Freiberg finished fourth overall in the regional Championship Enduro Series (CES) and seventh overall in the national WKA points standings in 2005. In 2006, she raced in the Junior Sprint category because she was too young to progress to other classes. Freiberg took her first race wins in regional and national karting series, and went undefeated in CES, winning two championship titles. She also won her first WKA title in 2006 and two more karting championships over the next two years. Soon after, she also joined
Lyn St. James's Women in the Winner's Circle Driver Development Academy in
Phoenix, Arizona, In 2007, Freiberg finished fourth in her debut Skip Barber race, finishing six times in the podium and taking nine more top-five finishes during the 2008 Skip Barber season. Freiberg placed fourth in her debut
Formula Mazda race in 2008, and Mazda Motorsports invited her to enter a round of the Skip Barber National Championship, in which she finished sixth. Freiberg also raced in the 2009 Skip Barber National Championship, becoming the first woman to claim a podium finish in that race and placing sixth overall in the points standings. and the first to take a race victory in the Skip Barber Mazda MX-5 Sedan Championship. She also finished fifth for Team GDT in the 2010
Star Mazda Championship race at Autobahn Country Club. Freiberg won four races in 2011 before she was required to withdraw from racing due to funding issues. At the season-opening round at Sebring, she twice finished in the overall top-five, and took second place outright in the first
Laguna Seca race, tying
Madison Snow for the championship lead. After an accident during a qualifying race at the
Canadian Tire Motorsport Park, EFFORT Racing terminated her contract for unspecified reasons. Frieberg was named a
Faces in the Crowd by
Sports Illustrated that year. Freiberg and Blackstock won the season-opening BMW Performance 200 after the
International Motor Sports Association (IMSA) disqualified the No. 96 Turner Motorsport BMW M3 for a technical infringement. This made her the first woman in series history to win a race overall, and the first outright at Daytona International Speedway. After poor results in the season's first three events, the duo finished second at the rain-affected Watkins Glen round, finishing third overall at Road America, and winning outright at the season-ending Road Atlanta race. Freiberg was eighth in the GS drivers' championship, garnering 226 points. s BMW that Freiberg shared with
Jens Klingmann and
Bret Curtis en route to second in her class at the
2016 12 Hours of Sebring. Freiberg co-drove
Turner Motorsport's No. 96 BMW M3 Grand Touring Daytona (GTD) car in the
2016 IMSA SportsCar Championship North American Endurance Cup, and shared the No. 88
Starworks Motorsport Oreca FLM09 Prototype Challenge (PC) car with
Mark Kvamme for the sprint races. She debuted at the season-opening
24 Hours of Daytona alongside
Jens Klingmann,
Bret Curtis and
Marco Wittmann, finishing 22nd in the GTD class and 48th overall after multiple technical problems. Two months later, she, Klingmann and Curtis finished a season-high second in the GTD class and 23rd overall at the
12 Hours of Sebring. Freiberg and Kvamme finished seventh in the PC class at both Long Beach and Laguna Seca and fifth at
Belle Isle. After sitting out the mid-season races, she returned to drive for Turner Motorsports alongside Klingmann and Curtis at the season-ending
Petit Le Mans, retiring before the race ended and being classified 10th in class. After spending months locating sponsors to fund her career, She took two consecutive third-place pro class finishes at the
Circuit of the Americas, In the opening round of the
2018 Continental Tire SportsCar Challenge, the BMW Endurance at Daytona, she and
Audi Sport TT Cup driver
Gosia Rdest formed the first all-female team in the GS class. The duo drove the No. 50 RHC-GMG Racing
Audi R8 LMS GT4, In December 2018, Freiberg shared a Shift Up Now-entered
BMW E30 with Lynn Kehoe, Kristina Esposito, Mandy McGee, and Karen Salvaggio in an all-female team at the 2018
25 Hours of Thunderhill, finishing second in class and 25th overall. Freiberg competed in the second endurance race of the
2020 Michelin Pilot Challenge alongside co-driver Ryan Nash in the GS-class M1 Racing
McLaren 570S GT4 at Road Atlanta in September 2020. Freiberg retired after completing 88 laps. For the season-ending round at Road Atlanta, Freiberg and Nash drove a
Porsche 718 Cayman GT4 sourced by M1 Racing from Volt Racing after their McLaren was damaged beyond repair following an accident caused by brake failure. The pair finished the race in 14th position. She was enrolled onto the All-In program that aimed to promote diversity and inclusiveness in auto racing by tire maker
Yokohama and she drove the No. 122 MDK Motorsports Porsche 991 GT3 Cup car in the 991 category during the 2023
Porsche Sprint Challenge North America. Freiberg won the class title with seven victories and twelve podiums for a points total of 671 over the 14-race season. Freiberg returned to Porsche Sprint Challenge North America for the 2024 season, staying at MDK Motorsports before joining the Kellymoss team midway through the campaign. Freiberg completed the season in third place in the 992 Pro-Am championship standings with 604 points and six podium finishes that included one victory at the Circuit of the Americas. She progressed to the highest-tier in the one make Porsche racing series ladder, the
Porsche Carrera Cup North America, remaining with the Kellymoss team for the 2025 season. Freiberg became a member of the Porsche Female Driver Program. ==In the media==