Round: 27 Ground: Hardcourt outdoor
| ITF M25 Martos | 2019/06/19 14:30 | Vivero Gonzalez, Pablo v Sumit Sarkar | 3-6,4-6 |
| ITF M25 Wichita | 2019/06/14 23:00 | Sumit Sarkar v Alexander Ritschard | 7-5,4-6,4-6 |
| ITF M25 Wichita | 2019/06/13 15:00 | Mark Whitehouse v Sumit Sarkar | 6-7,6-2,2-6 |
| ITF M25 Wichita | 2019/06/12 15:00 | Reinberg, Emil v Sumit Sarkar | 2-6,2-6 |
| ITF M15 Champaign | 2019/06/08 19:30 | Sumit Sarkar v Nathan Ponwith | 3-6,4-6 |
| ITF M15 Champaign | 2019/06/07 17:00 | Bryde, Trent v Sumit Sarkar | 3-6,1-6 |
| ITF M15 Champaign | 2019/06/06 17:00 | Sumit Sarkar v Ignat, Dragos Constantin | 7-5,6-1 |
| ITF M15 Champaign | 2019/06/05 21:00 | Sumit Sarkar v Beran, Martin | 6-4,6-4 |
| ITF M25 Martos | 2019/06/20 16:25 | Federico Zeballos v Mertens, Yannick | 3-6,1-6 |
| ITF M25 Martos | 2019/06/19 11:00 | Sergi Perez Contri v Mertens, Yannick | 2-6,2-6 |
| ITF M25 Jablonec Nad Nisou | 2019/05/21 11:40 | Bangoura, Sekou v Mertens, Yannick | 6-4,6-0 |
| Challenger - Aix en Provence | 2019/05/06 15:00 | Troicki, Viktor v Mertens, Yannick | 6-3,6-1 |
| Challenger - Bordeaux | 2019/04/29 12:55 | Mertens, Yannick v Calvin Hemery | 2-6,2-6 |
| ITF - M25 Sunderland | 2019/04/12 11:30 | Igor Sijsling v Mertens, Yannick | 6-2,6-4 |
| ITF - M25 Sunderland | 2019/04/11 11:05 | Mertens, Yannick v Gijs Brouwer | 7-5,6-2 |
| ITF - M25 Sunderland | 2019/04/09 11:35 | Alexis Canter v Mertens, Yannick | 2-6,6-7 |