Eighth in 2014 GTLM points, three podium finishes.
2015
Second in 2015 GTLM points with two wins (Long Beach and COTA) with co-driver Dirk Werner.
2016
Finished 7th in GTLM point standings after collecting two poles and two podiums (Sebring, Watkins Glen)
2017
Finished second in GTLM standings co-driving No. 25 BMW with Alexander Sims, scoring victories at Watkins Glen, Canadian Tire Motorsport Park and Michelin Raceway Road Atlanta.
2018
Competed in four IMSA Michelin Endurance Cup rounds as part of No. 25 BMW Team RLL effort in GTLM class with a best result of second at Sebring. Made six GTD starts in No. 96 Turner Motorsport BMW with a best result of sixth at Mid-Ohio.
2021
Finished second in IMSA Michelin Pilot Challenge GS points with wins at Watkins Glen and Road America.
2023
Finished third in IMSA Michelin Pilot Challenge GS driver point standings with wins at Watkins Glen and Michelin Raceway Road Atlanta.
