Stadium: Centre Court Round: 64 Ground: Hardcourt indoor
| Challenger Tiburon | 2018/09/26 19:55 | Peter Polansky v Christopher Eubanks | 3-6,3-6 |
| Challenger Tiburon | 2018/09/25 18:30 | Peter Polansky v Tom Fawcett | 6-4,6-4 |
| Challenger Columbus | 2018/09/19 19:35 | Thai-Son Kwiatkowski v Peter Polansky | 7-6,2-6,7-6 |
| Challenger Columbus | 2018/09/18 14:00 | Martin Joyce v Peter Polansky | 3-6,7-6,1-6 |
| Challenger Cary | 2018/09/10 20:40 | Peter Polansky v Alejandro Gonzalez | 3-6,4-6 |
| US Open | 2018/08/28 19:45 | Peter Polansky v Alexander Zverev | 2-6,1-6,2-6 |
| US Open | 2018/08/24 15:00 | Peter Polansky v Donald Young | 5-7,6-1,3-6 |
| US Open | 2018/08/23 15:00 | Peter Polansky v Santiago Giraldo | 7-6,6-4 |
| ITF Sweden F5 | 2018/10/01 14:00 | Karl Friberg v Otto Virtanen | 3-6,7-5,1-6 |
| ITF Sweden F4 | 2018/09/25 11:00 | Karl Friberg v Otto Virtanen | 6-1,5-7,0-6 |
| ITF Great Britain F5 | 2018/09/18 11:40 | Karl Friberg v Aidan Mchugh | 6-4,4-6,6-7 |
| ITF Great Britain F4 | 2018/09/12 12:05 | Jack Draper v Karl Friberg | 6-3,6-4 |
| ITF Great Britain F4 | 2018/09/11 13:00 | Robert Carter v Karl Friberg | 6-7,3-6 |
| ITF Belgium F10 | 2018/08/28 12:00 | Benjamin Dhoe v Karl Friberg | 6-3,6-2 |
| ITF Finland F3 | 2018/08/18 10:00 | Otto Virtanen v Karl Friberg | 4-6,1-6 |
| ITF Finland F3 | 2018/08/16 11:15 | Karl Friberg v Patrik Niklas-Salminen | 7-6,7-6 |