| Singles – 1st round: |
| Lehečka (Czech Republic) – Dimitrov (6-Bulgaria) 6: 4, 1: 6, 7: 6 (7: 5) |
| De Minaur (5-Austr.) – Bonzi (Fr.) 6: 3, 6: 1 |
| Bellier (Switzerland) – Shevchenko (Russia) 6: 4, 6: 2 |
| Paul (8-USA) – Borg (Sweden) 5: 7, 6: 4, 6: 1 |
| M. Ymer (Swedish) – Halys (Fr.) 5: 7, 6: 4, 6: 3 |
| Rusuvuori (Fin.) – J. Sousa (Portugal) 6: 3, 6: 2. |
| ANTWERP (hard surface, grant 725.540 euros): |
| Singles – 1st round: |
| Stricker (Švýc.) – Van de Zandschulp (7-Niz.) 6: 2, 6: 4 |
| Nišioka (8-Japanese) – Van Assche (Fr.) 5: 7, 6: 2, 7: 6 (7: 1) |
| Lestienne (Fr.) – De Jong (Niz.) 6: 3, 6: 4 |
| F. Cerúndolo (6-Arg.) – Hüsler (Switzerland) 5: 7, 7: 6 (7: 3), 6: 3 |
| Goffin – Bailly (both Belgians) 7: 6 (9: 7), 5: 7, 6: 4 |
| Munar (Sp.) – Van Rijthoven (Niz.) 6: 7 (7: 9), 6: 4, 7: 6 (7: 4). |
| NAPLES (hard surface, grant € 612,000): |
| Singles – 1st round: |
| Borges (Portugal) – Ramos (7-Sp.) 7: 5, 7: 6 (7: 5) |
| Cachín (Arg.) – Mannarino (8-Fri) 6: 1, 3: 6, 6: 4 |
| Kecmanovič (5-Serb.) – Cobolli (It.) 6: 1, 6: 2 |
| Daniel (Japan) – Martínez (Spain) 6: 3, 6: 3 |
| Galán (Col.) – Zapata (Sp.) 6: 4, 6: 4. |
| GUADALAJARA (hard surface, $ 2,527,250 grant): |
| Singles – 1st round: |
| Siniaková (Czech Republic) – Haddadová Maiaová (11-Bras.) 7: 5, 6: 2 |
| Bouzková – Martincová (both Czech Republic) 6: 2, 7: 5 |
| Kalinská (Russia) – Krejčíková (9-CR) 6: 3, 6: 4 |
| Ostapenko (12-Lot.) – Davis (USA) 6: 1, 6: 3 |
| Keys (13-USA) – Linette (Poland) 6: 3, 6: 3 |
| Collins (14-USA) – Dolehide (USA) 6: 4, 6: 1 |
| Vekičová (Chorv.) – Pigossiová (Braz.) 6: 4, 6: 1 |
| Bouchard (Can.) – Day (USA) 7: 5, 6: 3 |
| Trevisanová (It.) – Hibinová (Japan) 6: 4, 6: 3 |
| Cocciarettova (It.) – Potapova (Russia) 6: 2, 6: 1 |
| Frechová (Pol.) – Putintsevová (Kaz.) 6: 3, 6: 4. |
