Stadium: Court 4 Round: 24 Ground: Hardcourt outdoor
| Challenger Phoenix | 2019/03/11 17:00 | Frederik Nielsen v Fabrice Martin | 6-4,7-6 |
| Challenger Noumea | 2018/12/31 04:05 | Daniel Masur v Frederik Nielsen | 6-1,5-7,6-4 |
| Challenger Fairfield | 2018/10/08 17:00 | Kevin King v Frederik Nielsen | 6-4,6-3 |
| Challenger Fairfield | 2018/10/07 18:15 | Thai-Son Kwiatkowski v Frederik Nielsen | 7-6,3-6,5-7 |
| Challenger Fairfield | 2018/10/06 22:15 | Frederik Nielsen v Roberto Ortega-Olmedo | 6-2,6-2 |
| Challenger Stockton | 2018/09/29 23:05 | Alexander Ritschard v Frederik Nielsen | 6-4,7-6 |
| Challenger Tiburon | 2018/09/22 18:15 | Frederik Nielsen v Alexander Sarkissian | 4-6,5-7 |
| Challenger Cary | 2018/09/08 18:20 | Frederik Nielsen v Evan Song | 2-6,6-7 |
| ATP Indian Wells | 2019/03/06 00:30 | Lukas Lacko v Peter Polansky | 6-4,6-7,7-6 |
| Challenger Indian Wells | 2019/02/28 18:00 | Andrey Rublev v Peter Polansky | 6-2,7-5 |
| Challenger Indian Wells | 2019/02/26 22:10 | Christian Harrison v Peter Polansky | 4-6,6-3,6-7 |
| ATP Delray Beach | 2019/02/19 20:05 | Peter Polansky v John Isner | 3-6,6-7 |
| ATP New York | 2019/02/12 19:55 | Peter Polansky v Ryan Harrison | 3-6,4-6 |
| Challenger Newport Beach | 2019/01/23 19:55 | Kaichi Uchida v Peter Polansky | 0-6,6-3,7-6 |
| Australian Open | 2019/01/10 23:00 | Peter Polansky v Thanasi Kokkinakis | 4-6,4-6 |
| Australian Open | 2019/01/10 00:45 | Peter Polansky v Blaz Rola | 6-2,6-7,6-3 |