Stadium: Hard 6 Round: 54 Ground: Clay
| ITF Women Frydek Mistek | 2018/09/09 09:30 | Sofia Milatova v Kozakova, Kristina | 6-2,5-7,6-4 |
| Prague, Singles W-WITF-CZE-06A | 2018/09/01 11:00 | Kiernan, Emma Erin v Kozakova, Kristina | 2-6,7-5,6-3 |
| ITF Women Budapest | 2018/08/19 08:00 | Nina Ugrelidze v Kozakova, Kristina | 6-2,6-4 |
| ITF Women Kaposvar | 2018/05/08 06:55 | Kozakova, Kristina v Drahota Szabo, Dorka | 0-6,2-6 |
| ITF Women Kaposvar Qual | 2018/05/05 12:00 | Kozakova, Kristina v Izic, Armina | 6-1,6-2 |
| Antalya, Singles Qualifying W-WITF-TUR-08A | 2018/03/31 06:30 | Kozakova, Kristina v Stankovic, Aleksandra | 1-6,3-6 |
| Antalya, Singles Qualifying W-WITF-TUR-08A | 2018/03/04 08:30 | Velcea , Andreea v Kozakova, Kristina | 6-0,6-2 |
| Antalya, Singles Qualifying W-WITF-TUR-08A | 2018/02/19 07:00 | Suzan Lamens v Kozakova, Kristina | 6-0,6-1 |
| ITF Women Ofakim | 2018/10/17 08:40 | Katarina Kuzmova v Dia Evtimova | 6-3,2-6,0-6 |
| ITF Women Ofakim | 2018/10/15 09:20 | Katarina Kuzmova v Iveta Dapkute | 6-7,6-4,6-1 |
| ITF Women Ashkelon | 2018/10/12 07:00 | Katarina Kuzmova v Tahan, Maya | 6-3,6-7,3-6 |
| ITF Women Ashkelon | 2018/10/11 07:00 | Tolibova, Sadafmoh v Katarina Kuzmova | 4-6,2-6 |
| ITF Women Ashkelon | 2018/10/10 09:25 | Nicole Khirin v Katarina Kuzmova | 3-6,0-6 |
| ITF Women Ashkelon | 2018/10/09 12:40 | Katarina Kuzmova v Nadel, Nicole | 6-4,7-5 |
| ITF Women Ashkelon | 2018/10/07 07:00 | Katarina Kuzmova v Nekhorosheva , Diana | 6-3,6-2 |
| ITF Women Ashkelon | 2018/10/06 07:00 | Iveta Dapkute v Katarina Kuzmova | 5-7,2-6 |