The qualifier from Karlsruhe lost in the round of 16 to Chilean Nicolas Jarry 6:7 (5:7), 6:7 (2:7). Hanfmann had caused a surprise in the first round and eliminated Jarry's compatriot Cristian Garin, who had last reached the quarter-finals in Wimbledon.

For Hanfmann (30), the success against Garin was the first on the ATP tour since February. Against Jarry, number 118 in the world, was the last stop after 1:52 hours of play.