Stadium: Centre Court Round: 26 Ground: Grass
| Challenger San Francisco | 2017/02/09 23:30 | Peter Polansky v Tatsuma Ito | 6-7,6-3,4-6 |
| Challenger Ilkley | 2018/06/19 16:30 | Peter Polansky v Akira Santillan | 6-2,6-7,6-1 |
| Challenger Nottingham | 2018/06/15 13:40 | Peter Polansky v Alex De Minaur | 3-6,6-3,2-6 |
| Challenger Nottingham | 2018/06/14 16:00 | Peter Polansky v Stephane Robert | 6-3,6-4 |
| Challenger Nottingham | 2018/06/11 10:00 | Peter Polansky v George Loffhagen | 3-6,6-1,6-3 |
| Challenger Surbiton | 2018/06/05 10:00 | Mackenzie McDonald v Peter Polansky | 6-7,7-5,6-3 |
| French Open | 2018/05/29 17:20 | Peter Polansky v Pierre-Hugues Herbert | 3-6,6-4,2-6,2-6 |
| French Open Qual | 2018/05/25 10:25 | Peter Polansky v Jozef Kovalik | 6-7,6-7 |
| French Open Qual | 2018/05/24 08:00 | Peter Polansky v Pedja Krstin | 6-4,6-2 |
| Challenger Ilkley | 2018/06/19 14:00 | Tatsuma Ito v Bradley Klahn | 6-4,6-7,6-3 |
| Challenger Nottingham | 2018/06/13 10:00 | Tatsuma Ito v Brayden Schnur | 3-6,6-3,6-7 |
| Challenger Nottingham | 2018/06/12 11:00 | Cameron Norrie v Tatsuma Ito | 6-1,5-7,3-6 |
| Challenger Busan | 2018/05/15 02:00 | Tatsuma Ito v Yasutaka Uchiyama | 2-6,7-6,6-4 |
| Challenger Gimcheon | 2018/05/08 06:15 | Jason Jung v Tatsuma Ito | 6-3,5-7,7-6 |
| Challenger Seoul | 2018/05/05 07:15 | Mackenzie McDonald v Tatsuma Ito | 6-4,7-6 |
| Challenger Seoul | 2018/05/04 05:00 | Tatsuma Ito v Di Wu | 7-5,3-6,6-2 |
| Challenger Seoul | 2018/05/03 01:30 | Tatsuma Ito v Seong Chan Hong | 7-5,6-1 |