Stadium: Round: 62
| ITF Women Khimki | 2018/05/01 08:15 | Julia Glushko v Vivian Heisen | 6-3,6-2 |
| ITF Women Wiesbaden | 2018/04/25 09:00 | Ekaterine Gorgodze v Vivian Heisen | 6-2,6-4 |
| ITF Women Obidos | 2018/04/19 09:00 | Giulia Gatto Monticone v Vivian Heisen | 6-0,6-0 |
| ITF Women Obidos | 2018/04/18 09:00 | Rita Maria B D O Pinto v Vivian Heisen | 2-6,0-6 |
| ITF Women Obidos | 2018/04/11 14:35 | Vivian Heisen v Stefania Rubini | 2-6,2-6 |
| ITF Women Trnava | 2018/02/09 13:10 | Elena Rybakina v Vivian Heisen | 6-4,6-2 |
| ITF Women Trnava | 2018/02/08 11:30 | Nina Stankovska v Vivian Heisen | 1-6,4-6 |
| ITF Women Trnava | 2018/02/07 14:10 | Kiara Petrovicka v Vivian Heisen | 3-6,3-6 |