Stadium: Court 2 Round: 25 Ground: Hardcourt indoor
| Challenger Charlottesville | 2018/10/29 22:25 | Jelle Sels v Aragone, JC | 6-3,5-7,7-5 |
| Challenger Las Vegas | 2018/10/23 21:45 | Aragone, JC v Arevalo-Gonzalez, Marcelo | 2-6,6-4,6-7 |
| Challenger Fairfield | 2018/10/10 19:00 | Aragone, JC v Casper Ruud | 1-6,6-7 |
| Challenger Fairfield | 2018/10/09 19:40 | Marc Polmans v Aragone, JC | 4-6,7-6,3-6 |
| Challenger Stockton | 2018/10/02 17:00 | Blumberg, William v Aragone, JC | 3-6,6-2,6-2 |
| Challenger Tiburon | 2018/09/26 20:00 | Aragone, JC v Noah Rubin | 6-7,4-6 |
| Challenger Tiburon | 2018/09/24 18:35 | Jay Clarke v Aragone, JC | 2-6,6-7 |
| Challenger Cary | 2018/09/11 20:45 | Alexei Popyrin v Aragone, JC | 6-3,6-4 |
| Challenger Charlottesville | 2018/11/03 18:40 | Klahn, Bradley v Tommy Paul | 3-6,3-6 |
| Challenger Charlottesville | 2018/11/02 20:50 | Klahn, Bradley v Fratangelo, Bjorn | 6-3,6-3 |
| Challenger Charlottesville | 2018/10/31 23:35 | Klahn, Bradley v Ward, James | 6-1,6-2 |
| Challenger Charlottesville | 2018/10/30 16:40 | Klahn, Bradley v Denis Yevseyev | 6-3,2-6,6-3 |
| ATP Vienna | 2018/10/20 09:00 | Stakhovsky, Sergiy v Klahn, Bradley | 6-7,6-4,6-4 |
| ATP Stockholm | 2018/10/18 17:30 | Isner, John v Klahn, Bradley | 7-6,6-7,7-6 |
| ATP Stockholm | 2018/10/16 17:35 | Klahn, Bradley v Marius Copil | 6-2,3-6,6-4 |
| Shanghai, Chine | 2018/10/09 12:20 | Klahn, Bradley v Borna Coric | 4-6,2-6 |