| year | summary | Hard | Clay | I. hard | Carpet | Grass | Acrylic |
| 2024 | 1/2 | 0/0 | 1/2 | 0/0 | 0/0 | 0/0 | 0/0 |
| 2018 | 18/14 | 3/6 | 15/8 | 0/0 | 0/0 | 0/0 | 0/0 |
| 2017 | 4/11 | 0/6 | 4/5 | 0/0 | 0/0 | 0/0 | 0/0 |
| 2016 | 7/9 | 5/4 | 2/5 | 0/0 | 0/0 | 0/0 | 0/0 |
| 2015 | 4/5 | 0/0 | 4/5 | 0/0 | 0/0 | 0/0 | 0/0 |
| TOTAL | 34/41 | 8/16 | 26/25 | 0/0 | 0/0 | 0/0 | 0/0 |
| perc. % | 45.33 % | 33.33 % | 50.98 % | 0 % | 0 % | 0 % | 0 % |
Boris Kozlov / scheduled / last
| no matches found |
Boris Kozlov form
Boris Kozlov / last 50 matches
| 22.04.24 | q 1 | Blaise Bicknell | Boris Kozlov | 6-2, 6-3 |  | match details |  Savannah Challenger | Clay |
| 18.03.24 | qual. | Juan Pablo Paz | Boris Kozlov | 6-2, 6-3 | | match details |  Merida Challenger | Clay |
| 17.03.24 | q 1 | Boris Kozlov | Nicolas Steden | 6-2, 6-1 |  | match details | ||
| 15.11.18 | 1st round | Juan Pablo Grassi Mazzuchi | Boris Kozlov | 7-65, 6-4 | | match details | USA F32 | Clay |
| 12.11.18 | qual. | Boris Kozlov | Juan Ignacio Cabrera | 6-75, 6-4, 12-10 | | match details | ||
| 11.11.18 | q 2 | Boris Kozlov | Cedric De Zutter | 6-0, 6-1 | | match details | ||
| 10.11.18 | q 1 | Boris Kozlov | Sergio Gomez Montesa | 7-62, 6-4 | | match details | ||
| 09.11.18 | Boris Kozlov | Joakim Jnystrom | 6-0, 6-0 | | match details | |||
| 31.07.18 | q 2 | Alexander Cozbinov | Boris Kozlov | 4-6, 7-65, 6-2 | | match details | USA F21 | Hard |
| 28.07.18 | q 1 | Boris Kozlov | Joseph Mcallister | 7-66, 6-1 | | match details | ||
| 22.07.18 | q 1 | Carl Soderlund | Boris Kozlov | 6-3, 6-1 | | match details | USA F20 | Hard |
| 16.07.18 | q 2 | Alfredo Perez | Boris Kozlov | 6-3, 6-3 | | match details | USA F19b | Hard |
| 15.07.18 | q 1 | Boris Kozlov | Connor Rust | 6-0, 6-1 | | match details | ||
| 02.07.18 | q 2 | Matic Spec | Boris Kozlov | 6-2, 6-4 | | match details | USA F19 | Hard |
| 01.07.18 | q 1 | Boris Kozlov | Donovan Lilov | 6-2, 6-0 | | match details | ||
| 26.06.18 | q 2 | Boris Kozlov | Courtney Scott | 6-0, 6-3 | | match details | USA F18 | Clay |
| 26.06.18 | qual. | Jordi Arconada | Boris Kozlov | 6-1, 6-3 | | match details | ||
| 24.06.18 | q 1 | Boris Kozlov | Sam Sauter | 6-2, 6-1 | | match details | ||
| 17.06.18 | q 1 | Javier Naser | Boris Kozlov | 6-3, 4-6, 7-63 | | match details | USA F16 | Clay |
| 23.04.18 | q 2 | Rowland Phillips | Boris Kozlov | 6-3, 6-2 | | match details | USA F12 | Clay |
| 22.04.18 | q 1 | Boris Kozlov | Thomas Tomczak | 6-1, 6-0 | | match details | ||
| 21.04.18 | Boris Kozlov | Joseph Van Deinse | 6-0, 6-1 | | match details | |||
| 14.04.18 | Eric Ahren Moonga | Boris Kozlov | 6-2, 4-6, 6-4 | | match details | USA F11 | Clay | |
| 24.02.18 | q 1 | Marcos Giron | Boris Kozlov | 6-2, 6-0 | | match details | Indian Wells | Hard |
| 17.02.18 | q 1 | Alexander Bublik | Boris Kozlov | 6-1, 6-4 | | match details | Delray Beach | Hard |
| 31.01.18 | 1st round | Gabriel Ciro Da Silva | Boris Kozlov | 6-3, 6-74, 6-3 | | match details | USA F6 | Clay |
| 30.01.18 | qual. | Boris Kozlov | Antoine Sanchez | 7-5, 6-0 | | match details | ||
| 28.01.18 | q 2 | Boris Kozlov | Edward Ayers | 6-2, 6-2 | | match details | ||
| 28.01.18 | q 1 | Boris Kozlov | Dustin Goldenberg | 6-1, 6-0 | | match details | ||
| 27.01.18 | Boris Kozlov | Patrick Sebastian | 6-2, 6-2 | | match details | |||
| 21.01.18 | q 1 | Boris Kozlov | Leonardo Du Plooy | 6-1, 6-2 | | match details | USA F5 | Clay |
| 21.01.18 | q 2 | Ty Trombetta | Boris Kozlov | 7-5, 6-2 | | match details | ||
| 20.01.18 | Boris Kozlov | Charles Dossetter | 6-0, 6-0 | | match details | |||
| 08.01.18 | q 2 | Evan Bynoe | Boris Kozlov | 6-4, 6-4 | | match details | USA F3 | Clay |
| 07.01.18 | q 1 | Boris Kozlov | Mikael Rodriguez | 6-1, 6-4 | | match details | ||
| 14.10.17 | q 1 | Hans Hach Verdugo | Boris Kozlov | 6-2, 6-3 | | match details | Las Vegas | Hard |
| 30.09.17 | q 1 | Alexios Halebian | Boris Kozlov | 4-6, 6-0, 7-5 | | match details | Stockton Challenger | Hard |
| 09.09.17 | q 1 | Blaine Boyden | Boris Kozlov | 6-1, 1-6, 6-3 | | match details | Cary Challenger | Hard |
| 17.07.17 | q 1 | Alessandro-Damiano Ventre | Boris Kozlov | 6-4, 6-3 | | match details | USA F24 | Hard |
| 08.07.17 | q 1 | Logan Smith | Boris Kozlov | 6-2, 6-2 | | match details | Winnetka Challenger | Hard |
| 24.04.17 | Boris Kozlov | Jan Vrba | 6-4, 6-0 | | match details | USA F15 | Clay | |
| 24.04.17 | q 1 | Boris Kozlov | Joseph W. Van Meter | 6-2, 6-4 | | match details | ||
| 24.04.17 | q 2 | Jonathan Chang | Boris Kozlov | 6-4, 3-6, 6-3 | | match details | ||
| 27.02.17 | Ryan Goetz | Boris Kozlov | 6-4, 6-72, 6-2 | | match details | USA F9 | Clay | |
| 18.02.17 | q 1 | Vasek Pospisil | Boris Kozlov | 6-4, 6-1 | | match details | Delray Beach | Hard |
| 13.02.17 | Aron Pierce | Boris Kozlov | 7-65, 6-4 | | match details | USA F7 | Clay | |
| 23.01.17 | q 1 | Mehdi Laalej | Boris Kozlov | 6-4, 6-1 | | match details | USA F5 | Clay |
| 23.01.17 | Boris Kozlov | Imran Alam | 6-0, 6-0 | | match details | |||
| 12.01.17 | 2nd round | Ivan Endara | Boris Kozlov | 6-2, 6-4 | | match details | USA F3 | Clay |
| 10.01.17 | 1st round | Boris Kozlov | Alejandro Tabilo | 6-2, 6-4 | | match details |
