Stadium: Clay Court 5 Round: 62 Ground: Clay
| ITF W15 Heraklion | 2021/05/19 10:30 | Karen Marthiens v Tamara Malesevic | 1-6,1-6 |
| ITF W15 Heraklion | 2021/05/18 06:30 | Karen Marthiens v Aglaya Zaynieva | 6-2,3-6,11-9 |
| ITF W15 Le Havre | 2021/03/21 14:25 | Anaelle Leclercq v Karen Marthiens | 7-6,6-1 |
| ITF W15 Gonesse | 2021/03/15 12:25 | Karen Marthiens v Julie Belgraver | 0-6,0-6 |
| ITF W15 Gonesse | 2021/03/14 17:35 | Karen Marthiens v Margaux Komano | 6-1,6-2 |
| ITF W15 Amiens | 2021/03/08 08:55 | Mathilde Dury v Karen Marthiens | 6-4,6-1 |
| ITF W15 Amiens | 2021/03/07 09:15 | Valentina Losciale v Karen Marthiens | 6-1,4-6,7-10 |
| ITF W25 Poitiers | 2021/02/22 08:30 | Karen Marthiens v Tayisiya Morderger | 6-1,3-6,6-10 |
| ITF W15 Heraklion | 2021/05/17 08:00 | Sophie Greiner v Marija Semenistaja | 7-5,6-4 |
| ITF W25 Fujairah | 2021/01/18 07:35 | Katharina Gerlach v Marija Semenistaja | 6-0,6-0 |
| ITF W25 Fujairah | 2021/01/17 07:00 | Marija Semenistaja v Zhuoma Ni Ma | 6-3,3-6,10-7 |
| ITF W15 Monastir | 2020/10/26 09:30 | Weronika Falkowska v Marija Semenistaja | 6-2,6-2 |
| ITF W15 Monastir | 2020/10/25 10:30 | Chahd Berriri v Marija Semenistaja | 0-6,2-6 |
| ITF W15 Monastir | 2020/10/20 09:50 | Marija Semenistaja v Eliessa Vanlangendonck | 1-6,1-6 |
| ITF W15 Monastir | 2020/10/19 10:00 | Angelina Graovac v Marija Semenistaja | 2-6,6-4,7-10 |
| ITF W15 Monastir | 2020/10/13 08:00 | Marija Semenistaja v Katherine Westbury | 0-6,1-6 |