Stadium: Clay 1 Round: 62 Ground: Hardcourt outdoor
| ITF Women Darmstadt Qual | 2018/07/15 10:00 | Nikocevic, Sarah v Iva Primorac | 3-6,1-6 |
| Prokuplje, Singles W-WITF-SRB-02A | 2018/07/11 07:00 | Sipek, Lana v Nikocevic, Sarah | 2-6,6-2,6-4 |
| ITF Women Prokuplje Qual | 2018/07/09 10:30 | Kareisova, Ludmila v Nikocevic, Sarah | 3-6,6-7 |
| ITF Women Prokuplje Qual | 2018/07/08 09:00 | Mitrovic, Teodora v Nikocevic, Sarah | 0-6,6-3,1-6 |
| ITF Women Prokuplje Qual | 2018/07/07 14:00 | Nikocevic, Sarah v Nikola Breckova | 6-3,6-0 |
| ITF Women Prokuplje Qual | 2018/07/02 08:30 | Nikocevic, Sarah v Njiric, Silvia | 1-6,6-2,4-6 |
| ITF Women Prokuplje Qual | 2018/07/01 09:30 | Nikocevic, Sarah v Babic, J. | 6-1,1-6,6-1 |
| ITF Women Jablonec Nad Nisou Qual | 2018/06/23 08:00 | Nikocevic, Sarah v Maluniakova, Laura | 2-6,7-6,2-6 |
| ITF Women Heraklion | 2018/10/28 10:00 | Mataruga, Ramona v Guerin, Kimberly | 6-7,1-6 |
| ITF Women Florence | 2018/10/14 18:30 | Harrison, Madison v Guerin, Kimberly | 4-6,6-3,6-3 |
| ITF Women Charleston | 2018/10/01 13:00 | Guerin, Kimberly v Beck, Chloe | 2-6,2-6 |
| ITF Women Charleston | 2018/09/30 13:00 | Lynn, Rebecca v Guerin, Kimberly | 1-6,2-6 |
| ITF Women Hilton Head | 2018/09/26 14:55 | Eudice Chong v Guerin, Kimberly | 6-4,6-4 |
| ITF Women Dublin | 2018/07/29 11:30 | Lazic, Ema v Guerin, Kimberly | 6-2,6-3 |
| ITF Women Sandelfjord | 2018/07/25 10:25 | Rosenqvist, Julia v Guerin, Kimberly | 6-2,6-2 |
| ITF Women Sandelfjord | 2018/07/22 08:00 | Anna Ozerova v Guerin, Kimberly | 4-6,5-7 |