| ITF W25 Lagos | 10/09 09:55 | 25 | Nika Kukharchuk v Omolade Aderemi | 6-1,6-0 | |
| ITF W15 Norman | 10/01 15:00 | 25 | Dalayna Hewitt v Nika Kukharchuk | 6-1,6-1 | |
| ITF W15 Lubbock | 09/19 17:10 | 26 | Nika Kukharchuk v Tiphanie Fiquet | 6-4,4-6,1-6 | |
| ITF W15 Lubbock | 09/17 15:00 | 25 | Nika Kukharchuk v Rushri Wijesundera | 6-2,6-1 | |
| ITF W15 Lawrence | 09/11 17:50 | 25 | Nika Kukharchuk v Anastasia Nefedova | 0-6,7-5,2-6 | |
| WTA New York | 08/16 14:00 | 44 | Belinda Woolcock v Nika Kukharchuk | 6-4,7-6 | |
| WTA Washington | 07/27 14:00 | 64 | [161] Anna Kalinskaya v Nika Kukharchuk [494] | 7-6,6-1 | |
| ITF W80 Granby | 07/24 14:00 | 25 | [151] Sachia Vickery v Nika Kukharchuk [494] | 6-1,6-2 | |
| ITF W80 Granby | 07/23 14:20 | 45 | Nika Kukharchuk v Marina Stakusic | 7-5,5-7,10-7 | |
| ITF W25 Gatineau | 07/17 19:30 | 25 | [317] Susan Bandecchi v Nika Kukharchuk [478] | 3-6,6-0,6-4 | |
| ITF W25 Saskatoon | 07/10 16:00 | 25 | [464] Nika Kukharchuk v Miharu Imanishi [287] | 3-6,6-2,1-6 | |
| ITF W25 Saskatoon | 07/08 16:00 | 54 | Nika Kukharchuk v Holly Verner | 6-2,6-0 | |
| ITF W25 Den Haag | 07/01 07:30 | 54 | Nika Kukharchuk v Annick Melgers | 3-6,6-0,7-10 | |
| ITF W15 Alkmaar | 06/27 08:00 | 26 | [487] Nika Kukharchuk v Emily Arbuthnott [341] | 5-7,3-6 | |
| ITF W15 Alkmaar | 06/26 08:00 | 25 | Nika Kukharchuk v Rina Saigo | 6-0,6-2 | |
| ITF W25 Denver | 06/19 17:55 | 25 | Nika Kukharchuk v Dominique Schaefer | 3-6,3-6 | |
| ITF W25 Sumter | 06/12 15:30 | 25 | Gergana Topalova v Nika Kukharchuk | 4-6,6-1,6-1 | |
| ITF W25 Bethany Beach | 06/05 15:55 | 25 | [483] Nika Kukharchuk v Jada Robinson [478] | 3-6,2-6 | |
| ITF W25 SM de Montbui | 05/30 11:20 | 26 | [231] Arina Rodionova v Nika Kukharchuk [483] | 6-0,6-1 | |
| ITF W25 SM de Montbui | 05/28 13:30 | 25 | [379] Ekaterina Yashina v Nika Kukharchuk [483] | 0-6,6-3,1-6 | |
| ITF W100 Bonita Springs | 05/06 19:50 | 45 | [265] Olga Govortsova v Nika Kukharchuk [432] | 6-3,6-0 | |
| ITF W25 Khimki | 05/01 08:45 | 25 | Nika Kukharchuk v Ekaterina Makarova | 6-1,4-6,3-6 | |
| WTA Anning | 04/20 02:30 | 64 | [419] Nika Kukharchuk v Maddison Inglis [351] | 6-7,2-6 | |
| ITF W25 Jackson | 04/04 18:00 | 26 | [378] Tereza Mihalikova v Nika Kukharchuk [426] | 7-5,6-4 | |
| ITF W25 Jackson | 04/03 16:50 | 25 | Nika Kukharchuk v Mihaela Djakovic | 7-5,6-4 | |
| ITF W25 Canberra | 03/26 00:00 | 45 | Nika Kukharchuk v Masa Jovanovic | 2-6,2-6 | |
| ITF W25 Canberra | 03/25 01:00 | 45 | Nika Kukharchuk v Lisa Mays | 7-6,6-4 | |
| ITF W15 Xiamen | 03/22 02:00 | 27 | Nika Kukharchuk v Meiqi Guo | 1-6,1-6 | |
| ITF W15 Xiamen | 03/21 05:40 | 26 | Nika Kukharchuk v Chompoothip Jundakate | 7-5,6-3 | |
| ITF W15 Xiamen | 03/20 03:25 | 25 | Nika Kukharchuk v Meiting Liu | 6-1,6-3 |