Stadium: Court 5 Round: 46 Ground: Hardcourt indoor
| Challenger Knoxville | 2018/11/04 21:45 | Denis Yevseyev v Hiltzik, Jared | 7-6,7-5 |
| Challenger Charlottesville | 2018/10/30 16:40 | Klahn, Bradley v Denis Yevseyev | 6-3,2-6,6-3 |
| Challenger Charlottesville | 2018/10/29 16:10 | Hiltzik, Jared v Denis Yevseyev | 2-6,0-6 |
| Charlottesville, USA, Qualifying | 2018/10/28 14:00 | Gomez, Alejandro v Denis Yevseyev | 2-6,5-7 |
| Charlottesville, USA, Qualifying | 2018/10/27 18:00 | Fawcett, Tom v Denis Yevseyev | 1-6,4-6 |
| ITF USA F28 | 2018/10/20 15:35 | Denis Yevseyev v Watson, Andrew | 4-6,6-4,4-6 |
| ITF USA F28 | 2018/10/19 17:30 | Denis Yevseyev v Ryan Peniston | 6-4,5-7,7-5 |
| ITF USA F28 | 2018/10/18 15:30 | Denis Yevseyev v Bryde, Trent | 7-6,6-1 |
| Challenger Knoxville | 2018/11/04 22:45 | Lammons, Nathaniel v Nguyen, Daniel | 6-4,3-6,6-4 |
| Challenger Bastad Qual | 2018/07/07 10:40 | Lammons, Nathaniel v Taylor, Sam | 6-4,3-6,4-6 |
| Challenger Loughborough Qual | 2018/05/19 10:35 | Alexis Canter v Lammons, Nathaniel | 6-3,7-6 |
| Challenger Lisbon Qual | 2018/05/13 12:20 | Vega Hernandez, David v Lammons, Nathaniel | 6-2,3-6,6-2 |
| Challenger Lisbon Qual | 2018/05/12 11:40 | Goncalo Falcao v Lammons, Nathaniel | 6-2,5-7,4-6 |
| Challenger Savannah Qual | 2018/04/28 18:35 | Karue Sell v Lammons, Nathaniel | 6-4,6-4 |
| Challenger Tallahassee Qual | 2018/04/21 17:30 | Lammons, Nathaniel v Yoshihito Nishioka | 2-6,0-6 |
| Challenger Tallahassee Qual | 2018/04/21 14:00 | Lammons, Nathaniel v Galloway, Robert | 7-5,6-4 |