[224] Stefan Kozlov 6-1,6-7,6-0 Wolf, Jeffrey John [159] 2021-11-06 17:35
Stadium: Brenda Meyers Court Round: 28 Ground: Hardcourt indoor
Face à face
| Challenger Las Vegas | 2021/10/31 19:00 | Stefan Kozlov v Wolf, Jeffrey John | 4-6,4-6 |
| Challenger Columbus | 2021/09/25 16:00 | Wolf, Jeffrey John v Stefan Kozlov | 6-2,3-6,5-7 |
| Challenger Champaign | 2019/11/15 16:00 | Stefan Kozlov v Wolf, Jeffrey John | 2-6,2-6 |
| Challenger Columbus | 2019/01/07 19:00 | Wolf, Jeffrey John v Stefan Kozlov | 6-2,7-6 |
| ITF USA F13 | 2016/04/13 23:00 | Wolf, Jeffrey John v Stefan Kozlov | 1-6,3-6 |
Home History
| Challenger Charlottesville | 2021/11/05 17:55 | Emilio Nava v Stefan Kozlov | 4-6,2-6 |
| Challenger Charlottesville | 2021/11/03 23:55 | Jason Kubler v Stefan Kozlov | 3-6,1-6 |
| Challenger Charlottesville | 2021/11/03 01:35 | Stefan Kozlov v Fratangelo, Bjorn | 7-5,6-2 |
| Challenger Las Vegas | 2021/10/31 19:00 | Stefan Kozlov v Wolf, Jeffrey John | 4-6,4-6 |
| Challenger Las Vegas | 2021/10/30 21:50 | Stefan Kozlov v Aleksandar Kovacevic | 6-2,6-4 |
| Challenger Las Vegas | 2021/10/29 19:35 | Stefan Kozlov v Emilio Gomez | 7-6,6-4 |
| Challenger Las Vegas | 2021/10/28 19:35 | Aidan Mchugh v Stefan Kozlov | 2-6,7-5,6-7 |
| Challenger Las Vegas | 2021/10/26 20:20 | Mukund Sasikumar v Stefan Kozlov | 2-6,4-6 |
Away History
| Challenger Charlottesville | 2021/11/05 19:25 | Wolf, Jeffrey John v Thai-Son Kwiatkowski | 7-5,6-4 |
| Challenger Charlottesville | 2021/11/04 20:00 | Denis Kudla v Wolf, Jeffrey John | 2-6,6-7 |
| Challenger Charlottesville | 2021/11/03 01:00 | Wolf, Jeffrey John v Martin Damm | 7-5,6-4 |
| Challenger Las Vegas | 2021/10/31 19:00 | Stefan Kozlov v Wolf, Jeffrey John | 4-6,4-6 |
| Challenger Las Vegas | 2021/10/30 20:00 | Michael Mmoh v Wolf, Jeffrey John | 3-6,2-6 |
| Challenger Las Vegas | 2021/10/29 20:05 | Ernesto Escobedo v Wolf, Jeffrey John | 3-6,3-6 |
| Challenger Las Vegas | 2021/10/27 18:00 | Wolf, Jeffrey John v Denis Kudla | 4-6,6-3,6-0 |
| Challenger Las Vegas | 2021/10/26 21:15 | Shintaro Mochizuki v Wolf, Jeffrey John | 3-6,5-7 |