Stefan Kozlov 2-6,3-6 James Duckworth 2019-10-18 18:00
Stadium: Court 7 Round: 27 Ground: Hardcourt outdoor
Home History
| Challenger Las Vegas | 2019/10/17 18:00 | Stefan Kozlov v Alexander Ritschard | 5-7,6-4,6-1 |
| Challenger Las Vegas | 2019/10/15 20:55 | Blaz Rola v Stefan Kozlov | 4-6,3-6 |
| Challenger Las Vegas | 2019/10/14 23:15 | Stefan Kozlov v Evan Song | 6-4,6-3 |
| US Open | 2019/08/20 16:15 | Stefan Kozlov v Egor Gerasimov | 4-6,4-6 |
| Challenger Winnetka | 2019/07/11 19:15 | Stefan Kozlov v Jason Kubler | 2-6,3-6 |
| Challenger Winnetka | 2019/07/08 19:55 | Stefan Kozlov v Evgeny Karlovskiy | 6-2,6-4 |
| Challenger Little Rock | 2019/06/05 18:00 | Stefan Kozlov v Zhe Li | 3-6,7-5,0-6 |
| Challenger Little Rock | 2019/06/04 17:10 | Stefan Kozlov v Garrett Johns | 7-5,6-3 |
Away History
| Challenger Las Vegas | 2019/10/17 18:00 | Dmitry Popko v James Duckworth | 3-6,4-6 |
| Challenger Las Vegas | 2019/10/16 17:30 | Roy Smith v James Duckworth | 4-6,4-6 |
| Challenger Fairfield | 2019/10/10 20:10 | Brandon Nakashima v James Duckworth | 7-6,7-5 |
| Challenger Fairfield | 2019/10/09 19:00 | Felix Corwin v James Duckworth | 7-6,5-7,0-6 |
| ATP Tokyo | 2019/09/29 03:55 | James Duckworth v Alexei Popyrin | 3-6,6-7 |
| ATP Tokyo | 2019/09/28 04:30 | Thomas Fabbiano v James Duckworth | 2-6,3-6 |
| ATP Chengdu | 2019/09/22 05:00 | Kamil Majchrzak v James Duckworth | 4-6,7-6,6-4 |
| ATP Chengdu | 2019/09/21 09:10 | Harry Bourchier v James Duckworth | 3-6,4-6 |