| UTR Pro Tennis Series California | 05/18 18:30 | - | Jeffrey Fradkin v Nothhaft, Sebastian | 4-6,6-3,7-6 | |
| UTR Pro Tennis Series California | 05/18 01:00 | - | Alex Knaff v Nothhaft, Sebastian | 6-2,5-2 | |
| UTR Pro Tennis Series California | 05/15 20:00 | - | Nothhaft, Sebastian v Yassine Smiej | 2-6,1-5 | |
| ITF - M15 Hong Kong | 01/08 07:00 | 25 | Runhao Hua v Nothhaft, Sebastian | 6-4,6-4 |