Marius Copil, Romania, def. Jason Jung, Taiwan, 6-3, 7-6 (4).
Evgeny Donskoy, Russia, def. Jarmere Jenkins, United States, 7-6 (2), 6-2.
Alejandro Falla, Colombia, def. Taro Daniel (19), Japan, 6-2, 4-6, 6-1.
Andrey Kuznetsov (2), Russia, def. Richard Gabb, Britain, 6-2, 3-0, retired.
Andreas Beck, Germany, def. Adam Pavlasek, Czech Republic, 6-3, 6-3.
Adrian Menendez-Maceiras (11), Spain, def. Tim Puetz, Germany, 6-3, 6-2.
Jimmy Wang, Taiwan, def. Pedro Cachin, Argentina, 4-6, 6-3, 7-5.
Tatsuma Ito (4), Japan, def. Giovanni Lapentti, Ecuador, 7-5, 4-6, 6-3.
Hiroki Moriya, Japan, def. Jesse Huta Galung, Netherlands, 6-2, 7-6 (8).
Tobias Kamke, Germany, def. James McGee, Ireland, 6-7 (4), 6-4, 6-3.
Matteo Donati, Italy, def. Yuki Bhambri, India, 7-6 (5), 2-6, 6-2.
Yoshihito Nishioka, Japan, def. Andre Ghem (30), Brazil, 6-3, 6-0.
Vincent Millot, France, def. Kimmer Coppejans (1), Belgium, 6-3, 2-6, 6-3.
Julian Reister, Germany, def. Nicolas Kicker, Argentina, 6-3, 6-1.
Edouard Roger-Vasselin (28), France, def. Andrej Martin, Slovakia, 6-3, 5-7, 9-7.
Joshua Milton, Britain, def. Jan Hernych, Czech Republic, 3-6, 6-3, 6-4.
Michael Berrer (31), Germany, def. Frank Dancevic, Canada, 7-6 (4), 3-6, 6-3.
Jurgen Zopp, Estonia, def. Chen Ti, Taiwan, 6-2, 6-3.
Facundo Arguello (29), Argentina, def. Gianni Mina, France, 6-3, 5-7, 8-6.
Pierre-Hugues Herbert, France, def. Hans Podlipnik-Castillo, Chile, 6-3, 6-2.
Paul-Henri Mathieu (23), France, def. Dennis Novikov, United States, 6-2, 2-6, 6-3.
Igor Sijsling, Netherlands, def. Roberto Carballes Baena, Spain, 6-4, 5-7, 6-3.
Jurgen Melzer (6), Austria, def. Gerald Melzer, Austria, 6-1, 6-4.
Thiemo de Bakker (20), Netherlands, def. Ante Pavic, Croatia, 6-4, 7-6 (3).
Luke Saville, Australia, def. Nicolas Jarry, Chile, 6-2, 6-4.
Stephane Robert, France, def. Norbert Gombos (22), Slovakia, 6-3, 7-5.
Luca Vanni (5), Italy, def. Maxime Hamou, France, 6-4, 6-2.
Konstantin Kravchuk, Russia, def. Karen Khachanov, Russia, 7-6 (8), 6-3.
Matthias Bachinger (8), Germany, def. Daniel Cox, Britain, 6-3, 6-3.
Daniel Evans, Britain, def. Jaroslav Pospisil, Czech Republic, 7-6 (5), 7-6 (2).
Yuichi Sugita, Japan, def. Alexander Ward, Britain, 6-3, 6-2.
Michal Przysiezny (32), Poland, def. Germain Gigounon, Belgium, 6-3, 3-6, 9-7.
Saketh Myneni, India, def. Peter Gojowczyk, Germany, 7-6 (6), 6-4.
Kenny de Schepper, France, def. Radu Albot (16), Moldova, 7-6 (4), 6-4.
Marco Chiudinelli, Switzerland, def. Albert Montanes (21), Spain, 6-3, 4-6, 10-8.
Enzo Couacaud, France, def. Niels Desein, Belgium, 6-4, 6-4.
Tristan Lamasine, France, def. Chase Buchanan, United States, 1-6, 1-2, retired.
Horacio Zeballos, Argentina (27), def. Pere Riba, Spain, 6-7 (4), 6-4, 6-4.
Gastao Elias, Portugal, def. Pedro Sousa, Portugal, 6-3, 3-6, 6-1.
Zhang Ze, China, def. Yang Tsung-hua, Taiwan, 6-1, 7-5.
Guido Pella (3), Argentina, def. Roberto Marcora, Italy, 6-4, 4-6, 6-3.
Aslan Karatsev, Russia, def. Aldin Setkic, Bosnia-Herzegovina, 7-6 (5), 4-6, 9-7.
Boy Westerhof, Netherlands, def. Guilherme Clezar, Brazil, 7-5, 6-4.
Elias Ymer (25), Sweden, def. Thomas Fabbiano, Italy, 4-6, 6-3, 6-4.
Dustin Brown (12), Germany, def. Adrian Ungur, Romania, 6-1, 6-2.
John Millman (15), Australia, def. Christian Lindell, Sweden, 6-3, 6-2.
Andrea Arnaboldi, Italy, def. Renzo Olivo, Argentina, 6-4, 7-6 (4).
Ivan Dodig (14), Croatia, def. Jared Donaldson, United States, 6-3, 6-2.
Edward Corrie, Britain, def. Daniel Munoz-de la Nava (7), Spain, 6-3, 6-1.
Andrey Rublev, Russia, def. Jozef Kovalik, Slovakia, 6-4, 3-6, 6-3.
Guido Andreozzi, Argentina, def. Ryan Harrison (24), United States, 7-6 (4), 4-6, susp., darkness.
Inigo Cervantes, Spain, vs. Somdev Devvarman, India, 5-7, 6-4, susp., darkness.