| ITF W25 - Roehampton | 09/18 11:05 | 26 | [238] Myrtille Georges v Vivian Heisen [448] | 1-6,1-6 | |
| ITF W25 - Roehampton | 09/17 09:45 | 25 | Vivian Heisen v Chanelle Van Nguyen | 6-2,6-1 | |
| ITF W60 - Meitar | 09/09 10:10 | 45 | Vivian Heisen v Nicole Khirin | 6-7,7-6,4-10 | |
| ITF W25 - Wien | 08/27 12:30 | 25 | [433] Nicoleta-Catalina Dascalu v Vivian Heisen [422] | 6-0,4-6,6-3 | |
| ITF W25 - Leipzig | 08/14 09:00 | 25 | [252] Julia Grabher v Vivian Heisen [416] | 6-1,6-4 | |
| ITF W25 - Leipzig | 08/13 09:00 | 54 | [416] Vivian Heisen v Tayisiya Morderger [349] | 6-2,6-0 | |
| ITF W25 - Leipzig | 08/12 09:00 | 54 | Vivian Heisen v Mariana Drazic | 6-1,6-0 | |
| ITF W60 Warsaw | 08/06 07:00 | 54 | [445] Vivian Heisen v Anastasiya Shoshyna [401] | 4-6,2-6 | |
| ITF W60 Warsaw | 08/05 08:45 | 54 | Vivian Heisen v Anna Ukolova | 6-2,6-4 | |
| ITF W25 Woking | 08/02 11:55 | 27 | [414] Vivian Heisen v Oceane Dodin [372] | 5-7,6-7 | |
| ITF W25 Woking | 08/01 13:40 | 26 | [414] Vivian Heisen v Pei-Chi Lee [342] | 7-6,6-4 | |
| ITF W25 Woking | 07/31 15:35 | 25 | [328] Samantha Murray v Vivian Heisen [414] | 2-6,6-7 | |
| ITF W80 Nur-Sultan | 07/19 07:10 | 27 | [393] Iryna Shymanovich v Vivian Heisen [448] | 6-4,4-6,6-4 | |
| ITF W80 Nur-Sultan | 07/18 06:30 | 26 | Vivian Heisen v Gozal Ainitdinova | 6-2,3-6,7-5 | |
| ITF W80 Nur-Sultan | 07/16 08:30 | 25 | Vivian Heisen v Mai Minokoshi | 6-4,6-3 | |
| ITF W60 - Versmold | 07/08 10:30 | 54 | Vivian Heisen v Johana Markova | 1-6,1-6 | |
| ITF W25 - Darmstadt | 06/24 15:25 | 54 | Vivian Heisen v Carmen Schultheiss | Retired | |
| ITF W25 - Darmstadt | 06/24 08:00 | 54 | Vivian Heisen v Katerina Filip | 6-2,6-4 | |
| ITF W100 Manchester | 06/12 12:45 | 25 | [455] Vivian Heisen v Madison Brengle [98] | 5-7,3-6 | |
| ITF W100 Manchester | 06/11 10:00 | 45 | [147] Qianhui Tang v Vivian Heisen [455] | 0-6,2-6 | |
| ITF W100 Manchester | 06/10 13:05 | 45 | Katarzyna Pitak v Vivian Heisen | 1-6,2-6 | |
| ITF W25 Rome | 05/07 07:30 | 45 | Vivian Heisen v Camilla Scala | 6-1,2-6,4-10 | |
| ITF W25 Rome | 05/06 13:05 | 45 | Vivian Heisen v Karolayne A-Da Rosa | 7-5,7-5 | |
| ITF W25 Obidos | 04/11 09:00 | 26 | Vivian Heisen v Anastasiya Shoshyna | 1-6,3-6 | |
| ITF W25 Obidos | 04/09 15:30 | 25 | [443] Vivian Heisen v Amina Anshba [391] | 6-0,6-4 | |
| ITF W25 Obidos | 04/03 11:20 | 25 | Vivian Heisen v Sofia Shapatava | 6-7,6-7 | |
| ITF W25 Obidos | 04/02 09:30 | 45 | [444] Vivian Heisen v Anastasia Pribylova [354] | 6-3,5-7,10-8 | |
| ITF W25 - Kazan | 03/15 07:00 | 27 | [465] Vivian Heisen v Elena Rybakina [194] | 4-6,4-6 | |
| ITF W25 - Kazan | 03/14 07:00 | 26 | [152] Viktoriya Tomova v Vivian Heisen [465] | 2-6,3-6 | |
| ITF W25 - Kazan | 03/13 07:00 | 25 | Nefisa Berberovic v Vivian Heisen | 2-6,3-6 |