[344] Stefan Kozlov 4-6,6-4,6-4 Young, Donald [365] 2021-07-19 23:00
Stadium: Court 15 Round: 25 Ground: Hardcourt outdoor
Face à face
| ATP - Delray Beach | 2021/01/06 16:00 | Young, Donald v Stefan Kozlov | 4-6,6-4,6-4 |
| Challenger Dallas | 2020/02/04 19:15 | Stefan Kozlov v Young, Donald | 2-6,2-6 |
| Challenger - Sarasota | 2018/04/18 20:30 | Stefan Kozlov v Young, Donald | 6-4,6-4 |
| ATP - Indian Wells | 2017/03/11 00:40 | Young, Donald v Stefan Kozlov | 7-5,7-6 |
| Newport, USA | 2016/07/13 18:35 | Stefan Kozlov v Young, Donald | 0-6,4-6 |
Home History
| Weston, FL, Singles M-ITF-USA-05A | 2021/07/04 15:00 | Harrison, Ryan v Stefan Kozlov | 7-5,3-6,3-6 |
| Weston, FL, Singles M-ITF-USA-05A | 2021/07/03 17:15 | Stefan Kozlov v Christian Langmo | 6-2,7-5 |
| Weston, FL, Singles M-ITF-USA-05A | 2021/07/02 21:20 | Stefan Kozlov v Ben Shelton | 7-5,6-1 |
| Weston, FL, Singles M-ITF-USA-05A | 2021/07/02 21:00 | Stefan Kozlov v Ben Shelton | 7-5,6-1 |
| Weston, FL, Singles M-ITF-USA-05A | 2021/07/01 13:00 | Stefan Kozlov v Evan Zhu | 6-3,3-6,6-1 |
| Tulsa, Singles Main, M-ITF-USA-16A | 2021/06/16 23:30 | Pervolarakis, Michail v Stefan Kozlov | 7-6,6-4 |
| Orlando, USA | 2021/06/08 19:15 | Thiago Agustin Tirante v Stefan Kozlov | 6-3,6-1 |
| Orlando, USA | 2021/06/07 14:00 | Adrian Andreev v Stefan Kozlov | 6-4,4-6,4-6 |
Away History
| UTR Pro Tennis Series Atlanta | 2021/07/07 16:30 | Kiger, Mac v Young, Donald | 7-6,2-6,0-5 |
| UTR Pro Tennis Series Atlanta | 2021/07/06 13:30 | Rogers, Andrew v Young, Donald | 1-6,6-4,7-6 |
| UTR Pro Tennis Series Atlanta | 2021/07/04 15:00 | Young, Donald v Cenoz, Juan Pablo | 2-6,6-4,5-1 |
| Orlando, USA | 2021/06/07 17:15 | Polansky, Peter v Young, Donald | 6-2,6-2 |
| Little Rock, USA | 2021/06/02 22:55 | Ernesto Escobedo v Young, Donald | 6-3,6-0 |
| Challenger - Tallahassee | 2021/04/20 14:00 | Harrison, Ryan v Young, Donald | 2-6,6-3,6-3 |
| Challenger - Tallahassee | 2021/04/19 15:00 | Young, Donald v Filip Cristian Jianu | 4-6,2-6 |
| Challenger - Tallahassee | 2021/04/18 20:00 | Young, Donald v King, Evan | 6-1,6-2 |