The Schubert BMW driver began from 14th position, but a masterful pitstop strategy allowed him to take the lead and win the second race of the DTM weekend in Zandvoort.
He was joined on the rostrum by Mirko Bortolotti and Kelvin van der Linde, with the latter extending his lead within the championship.
As the lights went out for the sixth round of the campaign, polesitter Maximilian Paul entered Turn 1 but did not fend off Bortolotti, who took the lead on the surface.
However, moments later Clemens Schmid hit the barrier approaching Turn 5, and in one other incident Lucas Auer stopped as smoke billowed from the rear of his Mercedes, causing a red flag for 10 minutes.
Racing resumed with 55 minutes remaining, Bortolotti retained the lead before a security automobile break was called 12 minutes later when Ayhancan Guven spun on the exit of Turn 3.
The safety automobile ran for six minutes and the drivers held their positions after the restart until the pitstop window with 36 minutes left within the race.
Van der Linde was the primary of the favorites to pit fourth, Thierry Vermeulen was the third to vary tires on the following lap, and Bortolotti made one other tour before pitting.
Van der Linde's undercut worked though, as he passed Vermeulen with a daring move on the surface of Turn 7 on Bortolotti's out lap, while Paul finally pitted with 27 minutes remaining.
Mirko Bortolotti, SSR Performance Lamborghini Huracán EVO GT3
Photo: Alexander Trienitz
The undercut initially worked as he left the pits in front of him, but on the out lap Paul was overtaken by Bortolotti at Turn 7 before overtaking Van der Linde and Vermeulen in the next corners.
However, Wittmann managed to tug off an undercut by pitting during these battles, leaving the pit lane two seconds ahead of Bortolotti.
However, the Lamborghini driver quickly made progress and attacked Wittmann, with the 2 colliding at Turn 12.
This caused damage to Wittmann's rear left bodywork, but he was capable of proceed and gain time over Bortolotti, who gave him victory by 7.2 seconds.
Van der Linde thwarted Vermeulen's late attack to say his third podium of the season, with Luca Stolz ending in the highest five.
This means Van der Linde is eight points ahead of second-placed Bortolotti, with third-placed Ricardo Feller an extra eight points behind.
DTM Zandvoort – Results of the second race
Results to follow
