Stadium: Court 12 Round: 44 Ground: Clay
| Challenger Busan | 2019/05/10 05:00 | Yasutaka Uchiyama v Tatsuma Ito | 4-6,6-0,6-3 |
| Challenger Busan | 2019/05/09 04:40 | Tatsuma Ito v Cem Ilkel | 7-5,6-7,6-4 |
| Challenger Busan | 2019/05/07 05:25 | Tatsuma Ito v Tung-Lin Wu | 6-4,7-6 |
| Challenger Seoul | 2019/05/03 03:35 | Tatsuma Ito v Max Purcell | 7-6,6-7,3-6 |
| Challenger Seoul | 2019/05/02 02:00 | Lukas Lacko v Tatsuma Ito | 4-6,1-6 |
| Challenger Seoul | 2019/04/30 07:20 | Filip Peliwo v Tatsuma Ito | 5-7,2-6 |
| Challenger Taipei | 2019/04/12 07:20 | Tatsuma Ito v Sergiy Stakhovsky | 6-7,7-6,4-6 |
| Challenger Taipei | 2019/04/11 07:40 | Kamil Majchrzak v Tatsuma Ito | 7-6,6-7,6-7 |
| Challenger Lisbon | 2019/05/13 13:50 | Roberto Marcora v Johan Sebastien Tatlot | 4-6,7-5,6-3 |
| Challenger Aix en Provence | 2019/05/07 09:00 | Marcelo Arevalo v Johan Sebastien Tatlot | 7-5,6-2 |
| Challenger Bordeaux | 2019/05/01 13:55 | Gregoire Barrere v Johan Sebastien Tatlot | 6-2,7-6 |
| Challenger Bordeaux | 2019/04/29 15:45 | Johan Sebastien Tatlot v Steve Darcis | 7-6,6-3 |
| Challenger Francavilla | 2019/04/22 09:00 | Julian Ocleppo v Johan Sebastien Tatlot | 6-3,3-6,6-2 |
| Challenger Tunis | 2019/04/18 13:25 | Lorenzo Giustino v Johan Sebastien Tatlot | 6-1,5-7,6-3 |
| Challenger Tunis | 2019/04/17 09:00 | Johan Sebastien Tatlot v Facundo Bagnis | 6-2,7-6 |
| Challenger Tunis | 2019/04/15 15:55 | Johan Sebastien Tatlot v Gleb Sakharov | 6-1,6-7,6-3 |