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