[374] Stefan Kozlov 3-6,2-6 Tennys Sandgren [103] 2019-04-24 23:40
Stadium: Center Round: 25 Ground: Clay
Head to Head
| Challenger - Las Vegas | 2017/10/21 19:45 | Tennys Sandgren v Stefan Kozlov | 3-6,6-7 |
| Challenger Columbus 2 | 2016/11/27 20:00 | Stefan Kozlov v Tennys Sandgren | 6-1,2-6,6-2 |
| Challenger - Knoxville | 2016/11/10 19:10 | Stefan Kozlov v Tennys Sandgren | 6-2,6-4 |
| ITF USA F13 | 2016/04/16 17:30 | Stefan Kozlov v Tennys Sandgren | 6-2,6-4 |
| ITF USA F1 | 2016/01/09 18:00 | Tennys Sandgren v Stefan Kozlov | 1-6,1-6 |
Home History
| Challenger - Tallahassee | 2019/04/22 15:30 | Stefan Kozlov v Alexander Zhurbin | 4-6,6-4,6-0 |
| ITF- M15 - Sunrise | 2019/04/11 17:30 | Stefan Kozlov v Dmitry Popko | 5-7,3-6 |
| ITF- M15 - Sunrise | 2019/04/10 18:50 | Stefan Kozlov v Mateus Alves | 6-3,6-1 |
| ITF - M25 Calabasas | 2019/03/24 20:00 | Alexander Ritschard v Stefan Kozlov | 6-2,0-6,7-6 |
| ITF - M25 Calabasas | 2019/03/23 20:40 | Drew Baird v Stefan Kozlov | 2-6,2-6 |
| ITF - M25 Calabasas | 2019/03/22 20:00 | Jonathan Gray v Stefan Kozlov | 2-6,1-6 |
| ITF - M25 Calabasas | 2019/03/21 23:25 | Isaiah Strode v Stefan Kozlov | 6-7,0-6 |
| ITF - M25 Calabasas | 2019/03/19 20:30 | Ronnie Schneider v Stefan Kozlov | 2-6,0-6 |
Away History
| Challenger - Sarasota | 2019/04/21 14:30 | Tommy Paul v Tennys Sandgren | 6-3,6-4 |
| Challenger - Sarasota | 2019/04/20 15:30 | Marcos Giron v Tennys Sandgren | 6-7,6-2,2-6 |
| Challenger - Sarasota | 2019/04/19 16:40 | Peter Polansky v Tennys Sandgren | 6-7,3-6 |
| Challenger - Sarasota | 2019/04/18 18:50 | Guilherme Clezar v Tennys Sandgren | 6-7,2-6 |
| Challenger - Sarasota | 2019/04/16 22:55 | Ryan Shane v Tennys Sandgren | 6-3,6-7,6-7 |
| ATP - Houston | 2019/04/10 00:20 | Janko Tipsarevic v Tennys Sandgren | 6-1,7-6 |
| Challenger - Monterrey | 2019/04/07 02:10 | Tennys Sandgren v Alexander Bublik | 6-2,2-6,6-7 |
| Challenger - Monterrey | 2019/04/05 23:30 | Tennys Sandgren v Marcos Giron | 6-1,6-7,6-0 |