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Vivian Heisen vs. Tayisiya Morderger - head to head matches
| 13.08.19 | qual. | Vivian Heisen | Tayisiya Morderger | 6-2, 6-0 | match details |  W25+H Leipzig | Clay |
| 04.07.16 | q 2 | Vivian Heisen | Tayisiya Morderger | 6-4, 6-1 | match details | Versmold | Clay |
Vivian Heisen form & Tayisiya Morderger form
Vivian Heisen - last matches
 Cluj-Napoca - I. hard | ||||
| 15.10.23 qual. | vs. Anastasiya Soboleva | 2-6, 1-2, - Vivian Heisen - retired |  | match details |
| 14.10.23 q 1 | vs. Dalila Jakupovic | 6-4, 6-1 |  | match details |
 Sydney - Hard | ||||
| 10.01.22 qual. | vs. Anna Schmiedlova | 0-6, 1-6 | | match details |
| 09.01.22 q 1 | vs. Alicia Smith | 6-1, 1-6, 3-0, Alicia Smith - retired | | match details |
 W100+H Dubai - Hard | ||||
| 21.11.21 q 1 | vs. Oksana Selekhmeteva | 2-6, 3-6 | | match details |
 Courmayeur - I. hard | ||||
| 23.10.21 q 1 | vs. Martina Di Giuseppe | 6-75, 1-6 | | match details |
 Saint-Malo - Clay | ||||
| 03.05.21 qual. | vs. Viktoriya Tomova | 6-4, 5-7, 1-6 | | match details |
| 02.05.21 q 1 | vs. Leonie Kung | 3-6, 6-4, 6-2 | | match details |
 W60 Bellinzona - Clay | ||||
| 06.04.21 1st round | vs. Maryna Zanevska | 0-6, 1-6 | | match details |
| 05.04.21 qual. | vs. Svenja Ochsner | 3-6, 6-1, 10-8 | | match details |
| 04.04.21 q 1 | vs. Marina Bassols Ribera | 6-1, 6-3 | | match details |
 W25 Kazan - I. hard | ||||
| 10.03.21 1st round | vs. Urszula Radwanska | 2-6, 5-7 | | match details |
 W25 Orlando - Hard | ||||
| 12.11.20 1st round | vs. Hurricane Tyra Black | 4-6, 1-6 | | match details |
| 12.11.20 qual. | vs. Jessica Livianu | 2-6, 6-2, 10-3 | | match details |
| 11.11.20 q 1 | vs. Elizabeth Coleman | 7-67, 6-4 | | match details |
 Prague - Clay | ||||
| 08.08.20 q 1 | vs. Ulrikke Eikeri | 1-6, 5-7 | | match details |
 All Lower - Clay | ||||
| 08.08.20 1st round | vs. Ulrikke Eikeri | 1-6, 5-7 | | match details |
| 17.06.20 1st round | vs. Julia Middendorf | 5-7, 6-4, 3-6 | | match details |
| 16.06.20 1st round | vs. Joelle Steur | 6-2, 6-0 | | match details |
| W25 Moscow - I. hard | ||||
| 28.02.20 1/4 | vs. Ekaterina Kazionova | 6-4, 4-6, 4-6 | | match details |
| 27.02.20 2nd round | vs. Aneta Laboutkova | 7-63, 6-4 | | match details |
| 26.02.20 1st round | vs. Sofya Lansere | 6-1, 4-6, 6-4 | | match details |
| W25 Kazan - I. hard | ||||
| 23.01.20 2nd round | vs. Valentini Grammatikopoulou | 2-6, 1-6 | | match details |
| 22.01.20 1st round | vs. Alisa Kummel | 6-4, 6-0 | | match details |
| W100+H Dubai - Hard | ||||
| 08.12.19 q 1 | vs. Nicoleta Dascalu | 1-6, 3-6 | | match details |
| W60 Nantes - I. hard | ||||
| 31.10.19 2nd round | vs. Martina Caregaro | 0-6, 2-6 | | match details |
| 30.10.19 1st round | vs. Verena Meliss | 6-4, 6-4 | | match details |
 W60 Caldas - Hard | ||||
| 25.09.19 1st round | vs. Amandine Hesse | 4-6, 0-6 | | match details |
 W25 Roehampton - Hard | ||||
| 20.09.19 1/2 | vs. Nuria Parrizas-Diaz | 5-7, 2-6 | | match details |
| 19.09.19 1/4 | vs. Emma Raducanu | 7-5, 4-1, Emma Raducanu - retired | | match details |
Tayisiya Morderger - last matches
 W75 Koper - Clay | ||||
| 16.04.24 qual. | vs. Sapfo Sakellaridi | 4-6, 7-62, 6-73 | | match details |
| 15.04.24 q 1 | vs. Luna Vujovic | 6-1, 6-3 | | match details |
| W75 Bellinzona - Clay | ||||
| 10.04.24 1st round | vs. Irina Maria Bara | 7-5, 3-6, 1-6 | | match details |
| 09.04.24 qual. | vs. Anna Gabric | 2-6, 6-2, 7-66 | | match details |
| 08.04.24 q 1 | vs. Ana Frommenwiler | 6-1, 6-1 | | match details |
 W75 Split - Clay | ||||
| 01.04.24 qual. | vs. Veronica Miroshnichenko | 1-6, 6-73 | | match details |
| 31.03.24 q 1 | vs. Korina Roso | 6-2, 6-3 | | match details |
| W75 Croissy - I. hard | ||||
| 26.03.24 1st round | vs. Amarni Banks | 1-6, 6-73 | | match details |
| 25.03.24 qual. | vs. Carmen Corley | 6-0, 7-5 | | match details |
| 24.03.24 q 1 | vs. Tamira Paszek | 6-2, 6-3 | | match details |
| W50 Macon - I. hard | ||||
| 26.02.24 qual. | vs. Alevtina Ibragimova | 6-1, 1-6, 4-6 | | match details |
| 25.02.24 q 1 | vs. Elena Milovanovic | 6-1, 3-6, 6-2 | | match details |
| W75 Grenoble - I. hard | ||||
| 07.02.24 1st round | vs. Alice Robbe | 6-3, 3-6, 1-6 | | match details |
| 05.02.24 qual. | vs. Emmanuelle Salas | 6-3, 6-4 | | match details |
| 04.02.24 q 1 | vs. Maryna Kolb | 6-3, 6-2 | | match details |
| W75 Andrezieux - I. hard | ||||
| 29.01.24 q 1 | vs. Sarah Beth Grey | 2-6, 3-6 | | match details |
 W15 Esch/Alzette - I. hard | ||||
| 09.01.24 1st round | vs. Nina Potocnik | 3-6, 3-6 | | match details |
 W60 Trnava - I. hard | ||||
| 29.11.23 1st round | vs. Nadine Keller | 6-4, 2-6, 4-6 | | match details |
| 27.11.23 q 1 | vs. Katarina Kuzmova | 6-75, 4-6 | | match details |
 W100 Valencia - Clay | ||||
| 19.11.23 q 1 | vs. Maria Jose Portillo Ramirez | 3-6, 3-6 | | match details |
| W40 Petange - I. hard | ||||
| 12.11.23 q 1 | vs. Amandine Monnot | 3-6, 4-6 | | match details |
| W60 Hamburg - I. hard | ||||
| 18.10.23 1st round | vs. Stephanie Wagner | 1-6, 7-5, 2-6 | | match details |
| 16.10.23 qual. | vs. Paula Rumpf | 6-1, 6-4 | | match details |
| 15.10.23 q 1 | vs. Anna Schubries | 7-67, 6-2 | | match details |
| W40 Lisbon - Clay | ||||
| 01.10.23 q 1 | vs. Aneta Kladivova | 1-6, 3-6 | | match details |
 W60 Vienna - Clay | ||||
| 06.09.23 1st round | vs. Victoria Kan | 7-62, 5-7, 2-6 | | match details |
| 05.09.23 qual. | vs. Nina Vargova | 6-4, 6-2 | | match details |
| 04.09.23 q 1 | vs. Viktoria Veleva | 6-1, 6-3 | | match details |
 W40 Oldenzaal - Clay | ||||
| 29.08.23 qual. | vs. Vivian Wolff | 1-6, 2-6 | | match details |
| 28.08.23 q 1 | vs. Verena Meliss | 6-2, 6-0 | | match details |