Stadium: MTA 24 Round: 62 Ground: Clay
| ITF W25 Milovice | 2021/11/21 13:00 | Arina Gabriela Vasilescu v Kimchi, Shavit | 4-6,6-7 |
| UTR Pro Tennis Series Zadar Women | 2021/11/20 09:00 | Arina Gabriela Vasilescu v Mia Ristic | 6-3,6-2 |
| UTR Pro Tennis Series Zadar Women | 2021/11/19 09:00 | Sokovic, Nevena v Arina Gabriela Vasilescu | 5-7,1-5 |
| UTR Pro Tennis Series Zadar Women | 2021/11/18 13:30 | Kolar, Nastja v Arina Gabriela Vasilescu | 6-2,1-6,4-6 |
| UTR Pro Tennis Series Zadar Women | 2021/11/17 17:50 | Bolebruchova, Ema v Arina Gabriela Vasilescu | 0-6,2-6 |
| UTR Pro Tennis Series Zadar Women | 2021/11/17 14:30 | Leticia Tarocco v Arina Gabriela Vasilescu | 2-6,6-6 |
| ITF - W15 Héraklion | 2021/11/11 10:35 | Sofia Rocchetti v Arina Gabriela Vasilescu | 7-5,6-4 |
| ITF - W15 Héraklion | 2021/11/10 07:00 | Ginevra Montebruno v Arina Gabriela Vasilescu | 3-6,0-6 |
| ITF - W15 Antalya | 2021/11/29 06:00 | Andreea Alexandra Lila v Ondrejcekova, Klara | 6-7,6-2,7-10 |
| ITF - W15 Antalya | 2021/11/23 08:05 | Sylvie Zund v Ondrejcekova, Klara | 6-3,6-1 |
| ITF - W15 Antalya | 2021/11/22 09:00 | Abed, Yara v Ondrejcekova, Klara | 2-6,3-6 |
| ITF - W15 Antalya | 2021/11/15 06:30 | Victoria Gomez v Ondrejcekova, Klara | 1-6,6-4,10-3 |
| ITF - W15 Antalya | 2021/11/08 07:00 | Ondrejcekova, Klara v Belonog, Vasilisa | 6-3,3-6,3-10 |
| ITF W25 Jablonec nad Nisou | 2021/09/13 08:00 | Ondrejcekova, Klara v Zeynep Sonmez | 0-6,1-6 |
| ITF Women Varna | 2021/09/05 13:00 | Ondrejcekova, Klara v Ana Mukic | 2-6,4-6 |
| ITF W15 Bad Waltersdorf | 2021/08/23 07:00 | Giulia Carbonaro v Ondrejcekova, Klara | 6-7,6-1,10-5 |