Stadium: Center Court Round: 26 Ground: Hardcourt indoor
| Challenger Kobe | 2018/11/12 04:55 | Go Soeda v Kaito Uesugi | 6-3,6-1 |
| Challenger Shenzhen 2 | 2018/10/30 02:00 | Go Soeda v Blaz Kavcic | 3-6,3-6 |
| Challenger Liuzhou | 2018/10/22 04:35 | Go Soeda v Mohamed Safwat | 6-3,3-6,4-6 |
| Challenger Ningbo | 2018/10/18 03:00 | Go Soeda v Federico Gaio | 4-6,6-7 |
| Challenger Ningbo | 2018/10/16 07:15 | Enrique Lopez-Perez v Go Soeda | 6-7,6-3,6-7 |
| ATP Shenzhen | 2018/09/22 09:00 | Brayden Schnur v Go Soeda | 6-4,7-5 |
| Challenger Kaohsiung | 2018/09/20 12:00 | Gael Monfils v Go Soeda | 6-2,6-3 |
| Challenger Kaohsiung | 2018/09/19 05:30 | Go Soeda v Yuichi Sugita | 7-6,7-6 |
| Challenger Kobe | 2018/11/13 04:05 | Shinji Hazawa v Andrew Harris | 3-6,6-3,3-6 |
| Challenger Kobe | 2018/11/12 02:00 | Andrew Harris v Sho Shimabukuro | 6-4,6-3 |
| Challenger Kobe | 2018/11/11 02:00 | Andrew Harris v Yuki Mochizuki | 6-4,6-0 |
| Challenger Canberra 2 | 2018/10/31 01:45 | Yosuke Watanuki v Andrew Harris | 7-6,6-7,6-0 |
| Challenger Fairfield | 2018/10/06 17:00 | Sebastian Fanselow v Andrew Harris | 3-6,6-1,6-1 |
| Challenger Stockton | 2018/09/30 23:45 | Dayne Kelly v Andrew Harris | 7-5,6-7,7-6 |
| Challenger Stockton | 2018/09/29 22:00 | Daniel Nguyen v Andrew Harris | 0-6,4-6 |
| Challenger Columbus | 2018/09/18 18:10 | Jose Hernandez-Fernandez v Andrew Harris | 6-4,6-1 |