Guilherme Clezar 2-6,3-6 Stefan Kozlov 2018-01-22 19:55
Stadium: Court 3 Round: 25 Ground: Hardcourt outdoor
Head to Head
| Challenger Tiburon | 2016/09/26 22:00 | Stefan Kozlov v Guilherme Clezar | 6-2,6-2 |
Home History
| Challenger Rio de Janeiro | 2017/11/24 19:00 | Carlos Berlocq v Guilherme Clezar | 7-5,6-1 |
| Challenger Rio de Janeiro | 2017/11/23 14:00 | Christian Lindell v Guilherme Clezar | 3-6,0-6 |
| Challenger Rio de Janeiro | 2017/11/21 18:00 | Guilherme Clezar v Goncalo Oliveira | 3-6,6-3,6-3 |
| Challenger Santiago 2 | 2017/11/14 22:00 | Guilherme Clezar v Gonzalo Lama | 4-6,6-2,3-6 |
| Challenger Montevideo | 2017/11/08 17:00 | Nicolas Kicker v Guilherme Clezar | 6-3,6-1 |
| Challenger Montevideo | 2017/11/06 21:55 | Attila Balazs v Guilherme Clezar | 6-7,6-7 |
| Challenger Lima | 2017/10/24 15:30 | Blaz Rola v Guilherme Clezar | 7-6,6-0 |
| Challenger Cali 2 | 2017/10/21 16:00 | Guilherme Clezar v Federico Delbonis | 6-7,5-7 |
Away History
| Australian Open Qual | 2018/01/13 23:00 | Stefan Kozlov v Dustin Brown | 4-6,6-3,3-6 |
| Australian Open Qual | 2018/01/11 06:20 | Yannick Hanfmann v Stefan Kozlov | 6-4,6-7,4-6 |
| Australian Open Qual | 2018/01/09 23:00 | Stefan Kozlov v Blake Ellis | 7-6,4-6,7-6 |
| Challenger Noumea | 2018/01/01 08:30 | Stefan Kozlov v Corentin Moutet | 6-7,6-3,2-6 |
| Challenger Knoxville | 2017/11/08 16:20 | Stefan Kozlov v Tim Smyczek | 6-7,2-6 |
| Challenger Charlottesville | 2017/11/04 18:55 | Stefan Kozlov v Tim Smyczek | 3-6,6-2,2-6 |
| Challenger Charlottesville | 2017/11/03 19:30 | Stefan Kozlov v Denis Kudla | 6-4,6-3 |
| Challenger Charlottesville | 2017/11/02 23:40 | Stefan Kozlov v Liam Broady | 6-4,4-6,6-4 |