Stadium: Pista 1 Round: 27 Ground: Hardcourt outdoor
| ITF W25 Madrid | 2021/06/10 07:15 | Robin Anderson v Karman Kaur Thandi | 4-6,6-2,7-6 |
| ITF W25 Madrid | 2021/06/09 07:15 | Robin Anderson v Marine Szostak | 4-6,6-3,6-4 |
| French Open Women | 2021/05/25 08:30 | Ana Konjuh v Robin Anderson | 6-4,6-4 |
| ITF W60 Charlottesville | 2021/04/28 16:15 | Aldila Sutjiadi v Robin Anderson | 6-3,4-6,7-6 |
| WTA - Bogota | 2021/04/04 15:00 | Chloe Paquet v Robin Anderson | 3-6,6-3,6-2 |
| WTA - Bogota | 2021/04/03 15:00 | Kania, Paula v Robin Anderson | 1-6,4-6 |
| ITF W25 Newport Beach | 2021/03/02 21:00 | Robin Anderson v Kateryna Volodko | 6-7,4-6 |
| ITF W25 Orlando | 2021/02/21 15:55 | Robin Anderson v Katie Swan | 1-6,3-6 |
| ITF W25 Madrid | 2021/06/10 10:35 | Yvonne Cavalle-Reimers v Kostova, Elitsa | 6-3,2-6,5-7 |
| ITF W25 Madrid | 2021/06/09 09:05 | Poznikhirenko, Ganna v Kostova, Elitsa | 3-6,3-6 |
| French Open Women | 2021/05/26 08:30 | Kostova, Elitsa v Ekaterine Gorgodze | 6-7,3-6 |
| French Open Women | 2021/05/24 08:30 | Djoubri, Salma v Kostova, Elitsa | 3-6,2-6 |
| UTR Pro Tennis Series Pazardzhik Women | 2021/05/16 08:00 | Kostova, Elitsa v Darja Semenistaja | 6-1,6-3 |
| UTR Pro Tennis Series Pazardzhik Women | 2021/05/15 07:30 | Kostova, Elitsa v Julia Terziyska | 6-4,5-1 |
| UTR Pro Tennis Series Pazardzhik Women | 2021/05/14 10:30 | Shalamanova, Daria v Kostova, Elitsa | 2-6,3-5 |
| UTR Pro Tennis Series Pazardzhik Women | 2021/05/13 09:00 | Bojana Marinkovic v Kostova, Elitsa | 5-7,3-5 |