Stadium: Brenda Meyers Court Round: 28 Ground: Hardcourt indoor
| Challenger Columbus | 2018/09/19 19:35 | Thai-Son Kwiatkowski v Peter Polansky | 7-6,2-6,7-6 |
| Challenger Charlottesville | 2018/11/02 16:30 | Peter Polansky v Jelle Sels | 7-6,6-4 |
| Challenger Charlottesville | 2018/10/31 19:15 | Peter Polansky v Tobias Kamke | 7-5,7-5 |
| Challenger Charlottesville | 2018/10/30 14:00 | Peter Polansky v Jared Hiltzik | 6-2,7-5 |
| ATP Vienna | 2018/10/20 11:25 | Peter Polansky v Cameron Norrie | 2-6,1-6 |
| ATP Stockholm | 2018/10/17 11:20 | Peter Polansky v Denis Shapovalov | 3-6,7-5,5-7 |
| ATP Stockholm | 2018/10/15 12:00 | Peter Polansky v Andrea Arnaboldi | 6-4,1-6,6-4 |
| ATP Stockholm | 2018/10/14 13:55 | Peter Polansky v Karl Friberg | 6-4,6-1 |
| Challenger Tiburon | 2018/09/26 19:55 | Peter Polansky v Christopher Eubanks | 3-6,3-6 |
| Challenger Charlottesville | 2018/11/02 18:25 | Thai-Son Kwiatkowski v Michael Mmoh | 3-6,6-3,6-4 |
| Challenger Charlottesville | 2018/11/01 19:30 | Tim Smyczek v Thai-Son Kwiatkowski | 2-6,7-5,2-6 |
| Challenger Las Vegas | 2018/10/24 19:40 | Blaz Rola v Thai-Son Kwiatkowski | 6-3,6-4 |
| Challenger Las Vegas | 2018/10/23 19:35 | Thai-Son Kwiatkowski v Evan Song | 6-4,6-4 |
| Challenger Las Vegas | 2018/10/22 18:00 | Jelle Sels v Thai-Son Kwiatkowski | 4-6,6-7 |
| Challenger Las Vegas | 2018/10/21 18:00 | Pavel Krainik v Thai-Son Kwiatkowski | 4-6,2-6 |
| Challenger Las Vegas | 2018/10/20 17:00 | Daniel Nguyen v Thai-Son Kwiatkowski | 2-6,3-6 |
| Challenger Fairfield | 2018/10/07 18:15 | Thai-Son Kwiatkowski v Frederik Nielsen | 7-6,3-6,5-7 |