Krawietz and Puetz defeated Stevens and van de Zandschulp 6-7, 6-1, 10-4 to reach the round of 16.
Krawietz and Puetz were the third seeds at the tournament.
Kevin Krawietz and Tim Puetz faced Bart Stevens and Botic van de Zandschulp in the doubles draw at the Shanghai Masters.
Krawietz and Puetz defeated Stevens and van de Zandschulp 6-7, 6-1, 10-4 to reach the round of 16.
Krawietz and Puetz were the third seeds at the tournament.