[213] Jason Kubler 3-6,1-6 Stefan Kozlov [224] 2021-11-03 23:55
Stadium: Brenda Meyers Court Round: 26 Ground: Hardcourt indoor
Head to Head
| Challenger Columbus | 2021/09/23 15:00 | Jason Kubler v Stefan Kozlov | 2-6,5-7 |
| Challenger Winnetka | 2019/07/11 19:15 | Stefan Kozlov v Jason Kubler | 2-6,3-6 |
Home History
| Challenger Charlottesville | 2021/11/01 17:45 | Jeffrey Von Der Schulenburg v Jason Kubler | 6-7,5-7 |
| Challenger Las Vegas | 2021/10/28 21:35 | Jason Kubler v Emilio Gomez | 6-2,0-6,6-7 |
| Challenger Las Vegas | 2021/10/26 18:00 | Jason Kubler v Yosuke Watanuki | 6-7,6-0,7-6 |
| ATP Indian Wells | 2021/10/06 01:20 | Salvatore Caruso v Jason Kubler | 6-0,6-3 |
| ATP San Diego | 2021/09/25 23:45 | Kevin Anderson v Jason Kubler | 6-3,7-5 |
| Challenger Columbus | 2021/09/23 15:00 | Jason Kubler v Stefan Kozlov | 2-6,5-7 |
| Challenger Columbus | 2021/09/21 20:30 | Jason Kubler v Peter Polansky | 7-6,6-4 |
| Challenger Cary | 2021/09/13 22:00 | Mitchell Krueger v Jason Kubler | 6-3,6-2 |
Away History
| Challenger Charlottesville | 2021/11/03 01:35 | Stefan Kozlov v Bjorn Fratangelo | 7-5,6-2 |
| Challenger Las Vegas | 2021/10/31 19:00 | Stefan Kozlov v Jeffrey John Wolf | 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 |
| ATP Indian Wells | 2021/10/06 18:00 | Stefan Kozlov v Christopher Eubanks | 6-2,0-6,5-7 |
| Challenger Columbus | 2021/09/26 16:55 | Stefan Kozlov v Max Purcell | 4-6,6-2,6-4 |