First-round matches concluded on Tuesday, June 10, at the ATP 250 tournament in Stuttgart.
Results from the day:
Arthur Rinderknech (France) – Denis Shapovalov (Canada) – 4/6, 6/2, 6/0
Pierre-Hugues Herbert (France) – Damir Dzumhur (Bosnia and Herzegovina) – 4/6, 0/3 retired
Marton Fucsovics (Hungary) – Yannick Hanfmann (Germany) – 5/7, 4/6
Quentin Halys (France) – Lorenzo Sonego (Italy) – 6/7(6), 7/5, 6/4
Justin Engel (Germany) – James Duckworth (Australia) – 4/6, 6/4, 7/6(5)
Learner Tien (USA) – Yoshihito Nishioka (Japan) – 6/7(3), 7/6(3) retired
Corentin Moutet (France) – Fabio Fognini (Italy) – 4/6, 7/6(3), 3/6
Alex Michelsen (USA) – Gael Monfils (France) – 6/4, 4/6, 6/3
Pierre-Hugues Herbert (France) – Damir Dzumhur (Bosnia and Herzegovina) – 4/6, 0/3 retired
Marton Fucsovics (Hungary) – Yannick Hanfmann (Germany) – 5/7, 4/6
Quentin Halys (France) – Lorenzo Sonego (Italy) – 6/7(6), 7/5, 6/4
Justin Engel (Germany) – James Duckworth (Australia) – 4/6, 6/4, 7/6(5)
Learner Tien (USA) – Yoshihito Nishioka (Japan) – 6/7(3), 7/6(3) retired
Corentin Moutet (France) – Fabio Fognini (Italy) – 4/6, 7/6(3), 3/6
Alex Michelsen (USA) – Gael Monfils (France) – 6/4, 4/6, 6/3
