| ITF Women Versmold Qual | 2018/07/09 14:00 | Jule Niemeier v Ruppert, Lena | 6-3,6-3 |
| German Championship Women | 2020/12/07 12:30 | Schmidt, Marisa v Ruppert, Lena | 3-6,7-6,5-7 |
| ITF - W15 Monastir | 2020/10/29 08:00 | Ruppert, Lena v Tamara Curovic | 4-6,1-6 |
| ITF - W15 Monastir | 2020/10/28 08:00 | Olivia Gram v Ruppert, Lena | 2-6,0-6 |
| ITF - W15 Monastir | 2020/10/26 09:30 | Margarita Ignatjeva v Ruppert, Lena | 4-6,3-6 |
| ITF - W15 Monastir | 2020/10/25 12:00 | Safarova, Zdena v Ruppert, Lena | 3-6,3-6 |
| ITF - W15 Monastir | 2020/10/20 11:05 | Ruppert, Lena v Ines Ibbou | 2-6,1-6 |
| ITF W15 Alkmaar | 2020/08/28 10:55 | Noma Noha Akugue v Ruppert, Lena | 6-2,6-4 |
| ITF W15 Alkmaar | 2020/08/27 10:55 | Julia Avdeeva v Ruppert, Lena | 5-7,3-6 |
| ITF W25 LPD Gran Canaria | 2020/11/21 10:25 | Jule Niemeier v Sherif, M. | 5-7,7-5,1-6 |
| ITF W25 LPD Gran Canaria | 2020/11/20 10:15 | Jule Niemeier v Reka-Luca Jani | 6-4,6-3 |
| ITF W25 LPD Gran Canaria | 2020/11/19 10:00 | Jule Niemeier v Diane Parry | 7-5,0-6,7-5 |
| ITF W25 LPD Gran Canaria | 2020/11/18 13:00 | Kostova, Elitsa v Jule Niemeier | 3-6,0-6 |
| ITF W25 Cherbourg | 2020/10/17 11:30 | Harriet Dart v Jule Niemeier | 6-4,6-4 |
| ITF W25 Cherbourg | 2020/10/16 10:40 | Garcia Perez, Georgina v Jule Niemeier | 3-6,5-7 |
| ITF W25 Cherbourg | 2020/10/15 13:10 | Jule Niemeier v Daniela Seguel | 6-4,5-7,6-2 |
| ITF W25 Cherbourg | 2020/10/14 10:30 | Carole Monnet v Jule Niemeier | 5-7,3-6 |