Stadium: Court 7 Round: 25 Ground: Clay
| ITF W25 Aschaffenburg | 2019/07/18 14:30 | Anna-Lena Friedsam v Lutzeier, Lena | 6-2,6-3 |
| ITF W25 Aschaffenburg | 2019/07/17 13:55 | Antonitsch, Mira v Lutzeier, Lena | 1-6,6-1,6-7 |
| ITF W25 Aschaffenburg | 2019/07/15 15:50 | Lutzeier, Lena v Fabienne Gettwart | 6-3,6-2 |
| ITF W25 Aschaffenburg | 2019/07/15 10:25 | Stokke, Melanie v Lutzeier, Lena | 1-6,5-7 |
| Tabarka, Singles W-ITF-TUN-18A | 2019/07/02 08:00 | Neuwirth, Yvonne v Lutzeier, Lena | 4-6,7-6,6-3 |
| ITF W25 Darmstadt | 2019/06/24 16:00 | Jule Niemeier v Lutzeier, Lena | 6-3,6-3 |
| ITF W25 Darmstadt | 2019/06/24 08:00 | Fritsch, Celine v Lutzeier, Lena | 2-6,2-6 |
| Tabarka, Singles W-ITF-TUN-18A | 2019/06/01 09:00 | Lutzeier, Lena v Gatica, Barbara | 2-6,4-6 |
| WTA - Cluj-Napoca | 2021/08/01 14:10 | Stewart, Katerina v Irina Fetecau | 1-6,5-7 |
| ITF W60 Versmold | 2021/07/28 11:00 | Stewart, Katerina v Elina Avanesyan | 6-7,4-6 |
| ITF W60 Biarritz | 2021/07/14 08:00 | Stephanie Wagner v Stewart, Katerina | 6-0,6-1 |
| ITF W60 Amstelveen | 2021/07/05 10:25 | Stewart, Katerina v Alexandra Osborne | 4-6,1-6 |
| ITF W60 Charleston | 2021/06/23 13:30 | Maria Mateas v Stewart, Katerina | 6-4,0-6,7-6 |
| ITF W25 Pelham | 2021/05/19 16:00 | Stewart, Katerina v Contreras Gomez, Fernanda | 1-6,2-6 |
| ITF - W100 Bonita Springs | 2021/05/10 18:55 | Stewart, Katerina v Ulrikke Eikeri | 5-7,5-7 |
| ITF W25 Naples | 2021/05/07 13:30 | Irina Fetecau v Stewart, Katerina | 6-2,1-6,6-1 |