Stadium: Court 1 Round: 24 Ground: Hardcourt indoor
| Challenger Yokohama | 2019/02/25 06:30 | Max Purcell v Kevin King | 6-2,6-2 |
| Challenger Bangkok 1A | 2019/02/20 07:10 | Kevin King v Ze Zhang | 6-7,3-6 |
| Challenger Bangkok 1A | 2019/02/19 04:35 | Mukund Sasikumar v Kevin King | 7-5,4-6,2-6 |
| Challenger Bangkok | 2019/02/11 09:00 | Kevin King v Max Purcell | 4-6,7-6,3-6 |
| Challenger Cleveland | 2019/01/30 16:30 | Kevin King v Roberto Quiroz | 1-6,6-4,3-6 |
| Challenger Cleveland | 2019/01/29 02:45 | Felix Corwin v Kevin King | 1-6,3-6 |
| Challenger Columbus | 2019/01/09 17:40 | Marcos Giron v Kevin King | 6-2,6-4 |
| Challenger Orlando | 2019/01/03 15:00 | Kevin King v Michael Redlicki | 6-2,2-6,2-6 |
| Challenger Santiago | 2019/03/04 15:30 | Johannes Haerteis v Sumit Nagal | 6-4,0-6,6-3 |
| Challenger Chennai | 2019/02/05 05:50 | Duckhee Lee v Sumit Nagal | 6-3,6-4 |
| Challenger Chennai | 2019/02/04 09:15 | David Perez Sanz v Sumit Nagal | 3-6,2-6 |
| Challenger Koblenz | 2019/01/14 14:20 | Roman Safiullin v Sumit Nagal | 6-2,6-1 |
| Challenger Da Nang | 2019/01/09 05:00 | Tsung-Hua Yang v Sumit Nagal | 2-6,6-1,6-0 |
| Challenger Da Nang | 2019/01/08 05:00 | N.Sriram Balaji v Sumit Nagal | 6-7,6-7 |
| Challenger Pune | 2018/11/20 05:30 | Radu Albot v Sumit Nagal | 7-5,6-2 |
| Challenger Bangalore | 2018/11/15 09:30 | Saketh Myneni v Sumit Nagal | 6-4,6-4 |