Stadium: Court 1 Round: 25 Ground: Hardcourt outdoor
| US Open | 2018/08/24 15:00 | Peter Polansky v Donald Young | 5-7,6-1,3-6 |
| ATP Shanghai Qual | 2017/10/07 05:40 | Donald Young v Peter Polansky | 6-1,6-4 |
| Challenger Little Rock | 2021/06/02 16:30 | Oliver Crawford v Peter Polansky | 7-5,6-2 |
| French Open | 2021/05/24 10:00 | Peter Polansky v Nikola Milojevic | 6-7,6-1,2-6 |
| ATP Lyon | 2021/05/16 09:40 | Peter Polansky v Alessandro Giannessi | 3-6,4-6 |
| Challenger Prague | 2021/05/02 15:15 | Denis Istomin v Peter Polansky | 6-3,7-5 |
| Challenger Ostrava | 2021/04/27 10:00 | Peter Polansky v Lukas Klein | 3-6,5-7 |
| Challenger Tallahassee | 2021/04/19 19:10 | Peter Polansky v Michael Mmoh | 5-7,6-7 |
| Challenger Orlando | 2021/04/13 15:20 | Peter Polansky v Yasutaka Uchiyama | 3-6,6-3,4-6 |
| Challenger Nur-Sultan | 2021/03/04 05:00 | Soonwoo Kwon v Peter Polansky | 7-6,6-4 |
| Challenger Little Rock | 2021/06/02 22:55 | Ernesto Escobedo v Donald Young | 6-3,6-0 |
| Challenger Tallahassee | 2021/04/20 14:00 | Ryan Harrison v Donald Young | 2-6,6-3,6-3 |
| Challenger Tallahassee | 2021/04/19 15:00 | Donald Young v Filip Cristian Jianu | 4-6,2-6 |
| Challenger Tallahassee | 2021/04/18 20:00 | Donald Young v Evan King | 6-1,6-2 |
| Challenger Cleveland | 2021/03/17 23:35 | Alexis Galarneau v Donald Young | 7-5,7-5 |
| Challenger Cleveland | 2021/03/15 20:25 | Donald Young v Go Soeda | 6-3,6-7,7-5 |
| ATP Delray Beach | 2021/01/09 01:30 | Frances Tiafoe v Donald Young | 6-3,6-4 |
| ATP Delray Beach | 2021/01/06 16:00 | Donald Young v Stefan Kozlov | 4-6,6-4,6-4 |