Stadium: CENTER COURT Round: 28 Ground: Clay
| ITF W60 Zagreb | 2021/04/29 13:20 | Petra Marcinko v Jule Niemeier | 1-6,2-6 |
| ITF W60 Zagreb | 2022/04/28 07:50 | Petra Marcinko v Katarina Zavatska | 6-3,6-1 |
| ITF W60 Zagreb | 2022/04/27 13:35 | Despina Papamichail v Petra Marcinko | 1-6,3-6 |
| ITF W60 Zagreb | 2022/04/25 14:50 | Cristiana Ferrando v Petra Marcinko | 6-4,4-6,5-7 |
| Billie Jean King Cup | 2022/04/16 07:00 | Lola Radivojevic v Petra Marcinko | 1-6,6-2,0-6 |
| Billie Jean King Cup | 2022/04/14 07:00 | Petra Marcinko v Nino Natsvlishvili | 6-2,6-2 |
| Billie Jean King Cup | 2022/04/12 06:55 | Petra Marcinko v Julia Terziyska | 6-4,6-4 |
| Billie Jean King Cup | 2022/04/11 06:55 | Jacqueline Cabaj Awad v Petra Marcinko | 0-6,4-6 |
| ITF W80 Oeiras | 2022/04/07 11:00 | Dalma Galfi v Petra Marcinko | 6-0,4-6,6-4 |
| ITF W60 Zagreb | 2022/04/28 08:00 | Iryna Shymanovich v Jule Niemeier | 4-6,6-7 |
| ITF W60 Zagreb | 2022/04/26 12:25 | Ziva Falkner v Jule Niemeier | 2-6,4-6 |
| WTA Stuttgart | 2022/04/19 18:10 | Jule Niemeier v Bianca Andreescu | 6-7,3-6 |
| WTA Miami | 2022/03/21 14:00 | Storm Hunter v Jule Niemeier | 6-1,5-7,6-4 |
| WTA Indian Wells | 2022/03/07 23:30 | Christina McHale v Jule Niemeier | 3-6,7-5,6-4 |
| WTA Monterrey | 2022/02/28 22:20 | Heather Watson v Jule Niemeier | 6-3,2-6,7-6 |
| WTA Monterrey | 2022/02/27 17:00 | Catherine Harrison v Jule Niemeier | 3-6,3-6 |
| WTA Monterrey | 2022/02/26 21:40 | Bianca Jolie Fernandez v Jule Niemeier | 3-6,2-6 |