In 2001, he made his American Le Mans Series debut at the 12 Hours of Sebring, where he finished 2nd in the GT class with Randy Pobst and Christian Menzel, driving for Alex Job Racing.

The crowning achievement of the year was winning the GT class at the 24 Hours of Le Mans, with Kevin Buckler and Lucas Luhr.

Bernhard began the season by winning the 24 Hours of Daytona outright in a Porsche 911 GT3-RS, driving with Buckler, Michael Schrom, and Bergmeister.

Bernhard and Bergmeister won 3 ALMS races, including Petit Le Mans, and finished second in the championship.

Their successes included class wins at Sebring and Petit Le Mans, both time joined by Sascha Maassen.

After a frustrating start to the season, Bernhard and Dumas took advantage of the Audi R10's absence from the series to take the overall win at Mid-Ohio.

He also won the 24 Hours Nürburgring outright, partnering Lucas Luhr, Marcel Tiemann, and Mike Rockenfeller.

Bernhard partnered Klaus Graf in the Muscle Milk Team CytoSport Porsche RS Spyder to second place at Road America, the seventh round of the 2010 ALMS season.