Stadium: Court 3 Round: 54 Ground: Clay
| Challenger Mestre | 2018/05/23 08:30 | Daniel Masur v Gian Marco Moroni | 3-6,2-6 |
| Challenger Mestre Qual | 2018/05/20 08:30 | Daniel Masur v Gianluca Mager | 7-5,6-4 |
| Challenger Mestre Qual | 2018/05/19 08:30 | Daniel Masur v Evan Song | 6-4,6-2 |
| Challenger Heilbronn | 2018/05/15 15:15 | Dominik Koepfer v Daniel Masur | 7-5,6-4 |
| Challenger Heilbronn Qual | 2018/05/14 11:55 | Daniel Masur v Julian Lenz | 4-6,6-0,6-1 |
| Challenger Heilbronn Qual | 2018/05/13 13:00 | Daniel Masur v Denys Molchanov | 6-3,6-3 |
| Challenger Rome Qual | 2018/05/06 10:10 | Daniel Masur v Roberto Marcora | 6-1,2-6,5-7 |
| Challenger Rome Qual | 2018/05/06 08:00 | Francesco Bessire v Daniel Masur | 2-6,0-6 |
| Challenger Busan Qual | 2018/05/12 06:45 | Blake Ellis v Tung-Lin Wu | 7-5,6-4 |
| Challenger Gimcheon Qual | 2018/05/07 05:00 | Yoshihito Nishioka v Tung-Lin Wu | 3-6,6-4,6-3 |
| Challenger Gimcheon Qual | 2018/05/06 06:40 | Seong Chan Hong v Tung-Lin Wu | 4-6,7-6,2-6 |
| Challenger Gimcheon Qual | 2018/05/05 04:40 | Yeongseok Jeong v Tung-Lin Wu | 1-6,2-6 |
| Challenger Taipei | 2018/04/12 10:05 | Tung-Lin Wu v Dudi Sela | 3-6,6-1,3-6 |
| Challenger Taipei | 2018/04/09 08:55 | Tung-Lin Wu v Andrew Whittington | 6-3,7-6 |
| ITF Japan F4 | 2018/03/29 04:20 | Tung-Lin Wu v Yosuke Watanuki | 4-6,7-5,6-7 |
| ITF Japan F4 | 2018/03/27 01:00 | Tung-Lin Wu v Ryuki Matsuda | 6-0,6-2 |