Made four starts in GTD class, earning a best result of sixth at Watkins Glen with NGT Motorsport.
2015
Finished second in GTD standings in No. 007 TRG Aston Martin with five podiums in 10-race season, including second-place results at Sebring, Detroit, Road America and VIR.
2016
Became first woman to win a major North American sports car championship with GTD title alongside No. 63 Scuderia Corsa Ferrari co-driver Balzan. Won at Sebring (her first victory in IMSA competition) and Watkins Glen and had seven podiums in 11-race season. Also won IMSA Michelin Endurance Cup in GTD class...
2017
Earned second consecutive GTD championship co-driving No. 63 Scuderia Corsa Ferrari with Alessandro Balzan. Won at WeatherTech Raceway Laguna Seca and had seven podiums in 12 races.
2018
Moved to Wright Racing to co-drive No. 58 Porsche with Patrick Long and finished seventh in GTD championship standings with a win at Road America.