Stadium: Court 3 North Round: 26
| Challenger Tiburon MD | 2018/09/26 22:00 | Granollers-Pujol G / Vervoort M v Matsui T / Nielsen F | 4-6,6-3,10-4 |
| Challenger Cary MD | 2018/09/15 18:50 | Matsui T / Nielsen F v King/Reese | 6-2,1-6,8-10 |
| Challenger Cary MD | 2018/09/10 21:05 | Lock/Pasha v Matsui T / Nielsen F | 4-6,4-6 |
| Challenger Chicago MD | 2018/09/05 20:40 | King E / Pasha N v Matsui T / Nielsen F | 6-4,4-6,10-2 |
| Challenger Seoul MD | 2018/05/06 07:00 | Matsui T / Nielsen F v Chen T / Yi C | 6-4,7-6 |
| Challenger Seoul MD | 2018/05/04 09:15 | Matsui T / Nielsen F v Ito T / Mcdonald M | 6-4,3-6,15-13 |
| Challenger Seoul MD | 2018/05/03 09:20 | Hsieh C-P / Rungkat C v Matsui T / Nielsen F | 6-7,1-6 |
| Challenger Seoul MD | 2018/04/30 09:20 | Matsui T / Nielsen F v Kim D / Lee S-R | 6-4,6-2 |