Qualifier Cedric-Marcel Stebe is the only German tennis pro in the round of 16 at the ATP tournament in Dallas.
In contrast to the 31-year-old, in addition to Peter Gojowczyk, Oscar Otte and Daniel Altmaier failed in Texas in the first round.
Stebe prevailed against Denis Kudla (USA) 7:6 (9:7), 3:6, 6:3. In the second round the veteran meets the second seeded American Reilly Opelka.
Gojowczyk lost his opening match for the fourth time this year in a 1:6, 4:6 against Brit Liam Broady. Altmaier has the same record after his fifth start of the season with a 6:4, 3:6, 4:6 against the Italian Andreas Seppi. Otte was eliminated 4:6, 4:6 against the American Jack Sock (USA).