Stadium: Court 2 Round: 24 Ground: Hardcourt indoor
| Challenger Banja Luka | 2018/09/08 12:50 | Andrei Iakovlev v Peter Nagy | 0-6,1-6 |
| Challenger Sopot Qual | 2018/07/28 13:00 | Andrei Iakovlev v Grzegorz Panfil | 0-6,0-6 |
| Challenger Tampere | 2018/07/21 08:45 | Andrei Iakovlev v Jonathan Mridha | 1-6,0-6 |
| Challenger Caltanissetta Qual | 2018/06/09 15:30 | Marco Bortolotti v Andrei Iakovlev | 6-0,6-1 |
| Challenger Heilbronn Qual | 2018/05/12 12:00 | Andrei Iakovlev v Julian Lenz | 0-6,0-6 |
| French Open | 2019/05/21 09:20 | Kaichi Uchida v Mirza Basic | 6-7,3-6 |
| ATP Geneva | 2019/05/19 10:30 | Kaichi Uchida v Bernabe Zapata Miralles | 1-6,1-6 |
| ATP Geneva | 2019/05/18 11:20 | Ricardas Berankis v Kaichi Uchida | 4-6,4-6 |
| Challenger Gwangju | 2019/05/14 04:40 | Kaichi Uchida v Tung-Lin Wu | 1-6,4-6 |
| Challenger Busan | 2019/05/09 03:00 | Go Soeda v Kaichi Uchida | 6-4,6-3 |
| Challenger Busan | 2019/05/08 03:00 | Kaichi Uchida v Sergiy Stakhovsky | 7-6,6-3 |
| Challenger Busan | 2019/05/06 06:10 | Seong Chan Hong v Kaichi Uchida | 2-6,5-7 |
| Challenger Seoul | 2019/04/29 02:00 | Kaichi Uchida v Tung-Lin Wu | 6-4,1-6,4-6 |