In 2001, she beat Kimi Räikkönen's lap record and achieved a pole, and she was the first woman to receive the BRDC's "Rising Star" accolade.

In 2008, Legge moved to the Deutsche Tourenwagen Masters series, driving for Colin Kolles' Futurecom TME Audi team.

In January 2012, Legge signed with Dragon Racing in the IndyCar Series, alongside Frenchman Sébastien Bourdais.

[13] Legge reached a two-year agreement with sponsor TrueCar as part of their Women Empowered campaign.

Therefore, for the remainder of 2012, Dragon entered Bourdais at the road and street courses, and Legge at oval tracks, except for Sonoma Raceway where both drivers were able to compete.

Legge participated in the 2013 Indianapolis 500 race, as a joint venture between Schmidt Peterson Motorsports and Team Pelfrey.

Legge joined Michael Shank Racing in 2017 to drive an Acura NSX GT3 at the IMSA SportsCar Championship.

In the 2019 24 Hours of Daytona Legge raced as part of an all-female team alongside Simona de Silvestro, Christina Nielsen and Ana Beatriz, having placed second in class the previous year.

[5] In 2014, Legge signed for the Amlin Aguri team to compete in the inaugural season of the Formula E electric open-wheel series.

In July 2020, while participating in the pre race testing at Paul Ricard ahead of the European Le Mans Series, Legge was injured in a crash suffering a broken wrist and leg.

Legge was part of the all-female Richard Mille Racing team along with Sophia Florsch and Tatiana Calderón.

[25] In August 2018, Legge joined JD Motorsports for her NASCAR Xfinity Series debut at Mid-Ohio Sports Car Course, driving the No.

[30] Legge took part in the 2024 Pikes Peak International Hill Climb, driving an Acura Integra Type S DE5 in the Time Attack 1 category.

[32] Legge is a member of the Women in Motorsport Commission of the FIA (Federation Internationale de l'Automobile).

[33] On April 18, 2024, Legge was inducted into the Long Beach Motorsports Walk of Fame, the first woman to earn the honor.