Finished 10th in GTD championship standings with Team Seattle/Alex Job Racing, scoring podium results of second at Detroit and third at Sebring.
2015
Finished fourth in GTD championship standings with victories at Sebring and Detroit for Team Seattle/Alex Job Racing.
2016
Finished fifth in GTD championship standings in No. 23 Team Seattle/Alex Job Racing Porsche with a victory at WeatherTech Raceway Laguna Seca alongside co-driver Alex Riberas and two podium results.
2017
IMSA Michelin Endurance Cup GTD champion alongside No. 33 Mercedes-AMG co-drivers Ben Keating and Jeroen Bleekemolen with a victory at Sebring and a third-place showing at Daytona.
2018
Competed in seven GTD races, earning a victory at Detroit alongside co-driver Katherine Legge in No. 86 Acura.
2019
Co-drove No. 86 Meyer Shank Racing Acura to GTD championship with Trent Hindman. Duo won Sahlen’s Six Hours of The Glen and had five podium finishes in 10-race season.