| WTA Cluj-Napoca | 10/10 15:00 | 25 |
[46] Ana Bogdan
v
Jule Niemeier [74] 
|
6-7,2-6 | |
| WTA Parma | 09/27 12:00 | 25 |
[79] Jasmine Paolini
v
Jule Niemeier [72]
|
5-7,6-4,6-2 | |
| WTA Parma | 09/25 10:50 | 19 |
[72] Jule Niemeier v
Oksana Selekhmeteva
[151] 
|
6-3,6-3 | |
| WTA Parma | 09/24 07:30 | 14 |
Jule Niemeier v
Francesca Pace
|
6-2,6-1 | |
| WTA Budapest | 09/21 10:05 | 26 |
[72] Jule Niemeier v
Tamara Zidansek
[100] 
|
3-6,6-7 | |
| WTA Budapest | 09/20 10:20 | 25 |
[72] Jule Niemeier v
Magdalena Frech
[120] 
|
6-4,5-7,6-3 | |
| US Open Women | 09/05 17:45 | 26 |
[1] Iga Swiatek
v
Jule Niemeier [108]
|
2-6,6-4,6-0 | |
| US Open Women | 09/04 00:45 | 25 |
[108] Jule Niemeier v
Qinwen Zheng
[39] 
|
6-4,7-6 | |
| US Open Women | 09/01 16:30 | 24 |
[38] Yulia Putintseva
v
Jule Niemeier [108]
|
4-6,3-6 | |
| US Open Women | 08/30 23:00 | 23 |
[327] Sofia Kenin
v
Jule Niemeier [108]
|
6-7,4-6 | |
| ITF W60 Bronx | 08/17 14:00 | 25 |
[100] Jule Niemeier v
Lesley Pattinama Kerkhove
[199] |
6-0,3-6,2-6 | |
| WTA Hamburg | 07/19 09:00 | 25 |
[165] Joanne Zuger
v
Jule Niemeier [102]
|
6-4,0-6,6-4 | |
| WTA Lausanne | 07/15 10:00 | 27 |
[79] Anastasia Potapova
v
Jule Niemeier [109]
|
6-4,6-2 | |
| WTA Lausanne | 07/14 12:20 | 26 |
[109] Jule Niemeier v
Eva Lys
[217] 
|
6-4,6-2 | |
| WTA Lausanne | 07/11 12:10 | 25 |
[121] Ylena In-Albon
v
Jule Niemeier [109]
|
5-7,7-6,3-6 | |
| Wimbledon Women | 07/05 12:00 | 27 |
[103] Tatjana Maria
v
Jule Niemeier [97]
|
4-6,6-2,7-5 | |
| Wimbledon Women | 07/03 13:25 | 26 |
[121] Heather Watson
v
Jule Niemeier [97]
|
2-6,4-6 | |
| Wimbledon Women | 07/01 10:00 | 25 |
[101] Lesia Tsurenko
v
Jule Niemeier [97]
|
4-6,6-3,3-6 | |
| Wimbledon Women | 06/29 12:00 | 24 |
[97] Jule Niemeier v
Anett Kontaveit
[3] |
6-4,6-0 | |
| Wimbledon Women | 06/27 15:05 | 23 |
[97] Jule Niemeier v
Xiyu Wang
[105] 
|
6-1,6-4 | |
| WTA Bad Homburg | 06/21 17:10 | 26 |
[13] Daria Kasatkina
v
Jule Niemeier [97]
|
6-1,3-6,6-1 | |
| WTA Bad Homburg | 06/20 16:55 | 25 |
[76] Claire Liu
v
Jule Niemeier [97]
|
2-6,2-6 | |
| WTA Berlin | 06/14 10:40 | 25 |
[17] Belinda Bencic
v
Jule Niemeier [96]
|
6-4,5-7,6-3 | |
| WTA Makarska | 06/05 15:30 | 29 |
[157] Elisabetta Cocciaretto
v
Jule Niemeier [102]
|
5-7,1-6 | |
| WTA Makarska | 06/04 17:35 | 28 |
[184] Linda Noskova
v
Jule Niemeier [102]
|
2-6,1-6 | |
| WTA Makarska | 06/03 15:25 | 27 |
[102] Jule Niemeier v
Anastasia Gasanova
[154] |
6-2,7-5 | |
| WTA Makarska | 06/02 13:05 | 26 |
[102] Jule Niemeier v
Xiyu Wang
[110]
|
6-7,6-2,6-4 | |
| WTA Makarska | 05/31 11:45 | 25 |
[102] Jule Niemeier v
Astra Sharma
[124] 
|
Retired | |
| French Open Women | 05/22 09:00 | 23 |
[64] Sloane Stephens
v
Jule Niemeier [102]
|
5-7,6-4,6-2 | |
| French Open Women | 05/19 10:00 | 19 |
[103] Jule Niemeier v
Moyuka Uchijima
[209] 
|
6-0,6-1 |