Stadium: Court 3 Round: 26 Ground: Hardcourt indoor
| 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 Tiburon MD | 2018/09/27 18:00 | Granollers-Pujol G / Vervoort M v Lawson A / Reese H | 6-4,6-7,8-10 |
| 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 Charlottesville MD | 2018/11/04 18:00 | Heliovaara H / Laaksonen H v Matsui T / Nielsen F | 6-3,6-4 |
| Challenger Charlottesville MD | 2018/11/02 15:00 | Matsui T / Nielsen F v Arevalo-Gonzalez M / Maytin R | 1-6,6-4,10-6 |
| Challenger Charlottesville MD | 2018/11/01 17:50 | Aragone J / Kozlov S v Matsui T / Nielsen F | 6-7,1-6 |
| Challenger Fairfield MD | 2018/10/10 01:50 | Lawson A / Reese H v Matsui T / Nielsen F | 6-3,7-6 |
| Challenger Stockton MD | 2018/10/05 22:10 | Ratiwatana Sa / Rungkat C v Matsui T / Nielsen F | 5-7,6-1,10-8 |
| Challenger Stockton MD | 2018/10/04 21:10 | Matsui T / Nielsen F v El Sallaly/Goransson | 6-3,6-4 |
| Challenger Stockton MD | 2018/10/02 21:30 | Matsui T / Nielsen F v Huesler M A / Miedler L | 7-6,6-2 |
| Challenger Tiburon MD | 2018/09/26 22:00 | Granollers-Pujol G / Vervoort M v Matsui T / Nielsen F | 4-6,6-3,10-4 |