Dominik Koepfer reached the round of 16 at the ATP tournament in Winston-Salem.
Yannick Hanfmann, seeded number ten, lost his tennis game against Juan Manuel Cerundolo from Argentina 6:7 (3:7), 7:5, 6:7 (4:7) and was eliminated.
Koepfer defeated Strong Kirchheimer from the USA 6:3, 6:2 and now meets Jiri Lehecka from the Czech Republic in the last tournament before the US Open.