| ITF W100 - Wiesbaden | 05/01 10:55 | 25 | [152] Ella Seidel v Jule Niemeier [111] | 1-6,3-6 | |
| ITF W100 - Oeiras | 04/26 10:30 | 27 | [142] Yuliia Starodubtseva v Ella Seidel [152] | 6-3,6-1 | |
| ITF W100 - Oeiras | 04/25 16:10 | 26 | [187] Aliona Falei v Ella Seidel [152] | 2-6,6-0,4-6 | |
| ITF W100 - Oeiras | 04/24 16:00 | 25 | [227] Harmony Tan v Ella Seidel [152] | Retired | |
| WTA Stuttgart | 04/13 09:00 | 14 | [77] Oceane Dodin v Ella Seidel [151] | 6-4,6-1 | |
| WTA La Bisbal D'Emporda | 04/02 16:05 | 25 | [148] Dalma Galfi v Ella Seidel [150] | 7-6,6-3 | |
| WTA Antalya | 03/28 09:10 | 26 | [172] Zeynep Sonmez v Ella Seidel [152] | 4-6,6-1,6-2 | |
| WTA Antalya | 03/26 08:00 | 25 | [152] Ella Seidel v Jana Fett [159] | 6-1,6-2 | |
| ITF W35 - Alaminos-Larnaca | 03/19 08:25 | 25 | [152] Ella Seidel v Lois Boisson [293] | 1-6,4-6 | |
| ITF W75 - Porto | 02/22 12:30 | 26 | [157] Ella Seidel v Celine Naef [177] | 3-6,1-6 | |
| ITF W75 - Porto | 02/20 12:20 | 25 | [157] Ella Seidel v Kathinka Von Deichmann [277] | 6-0,6-3 | |
| ITF W75 - Altenkirchen | 02/15 10:00 | 26 | [318] Magali Kempen v Ella Seidel [158] | 4-6,6-3,7-5 | |
| ITF W75 - Altenkirchen | 02/13 11:40 | 25 | [248] Nigina Abduraimova v Ella Seidel [158] | 4-6,4-6 | |
| ITF W75 - Grenoble | 02/08 12:10 | 26 | [415] Ekaterina Maklakova v Ella Seidel [157] | 6-2,4-6,7-6 | |
| ITF W75 - Grenoble | 02/06 11:45 | 25 | [434] Emily Appleton v Ella Seidel [160] | 3-6,1-6 | |
| WTA Linz | 01/29 14:05 | 19 | [160] Ella Seidel v Sara Errani [99] | 6-7,4-6 | |
| WTA Linz | 01/28 17:40 | 14 | [69] Magdalena Frech v Ella Seidel [173] | 4-6,0-6 | |
| Australian Open - Damer | 01/14 12:35 | 23 | [173] Ella Seidel v Aryna Sabalenka [2] | 0-6,1-6 | |
| Australian Open - Damer | 01/12 02:00 | 19 | [172] Ella Seidel v Hailey Baptiste [131] | 6-0,6-4 | |
| Australian Open - Damer | 01/11 03:35 | 15 | [172] Ella Seidel v Francesca Jones [295] | Retired | |
| Australian Open - Damer | 01/10 03:45 | 14 | [116] Elizabeth Mandlik v Ella Seidel [172] | 3-6,6-2,4-6 | |
| WTA - Canberra | 01/02 23:00 | 26 | [183] Ella Seidel v Maya Joint [415] | 7-5,3-6,4-6 | |
| WTA - Canberra | 01/02 04:15 | 25 | [125] Lucrezia Stefanini v Ella Seidel [183] | 1-6,5-7 | |
| WTA - Canberra | 01/01 04:05 | 19 | [183] Ella Seidel v Petra Hule [403] | 4-6,6-1,6-0 | |
| WTA - Canberra | 12/31 07:40 | 25 | [136] Eva Lys v Ella Seidel [179] | 3-6,2-6 | |
| WTA Andorra | 12/01 13:00 | 27 | [140] Erika Andreeva v Ella Seidel [194] | 6-4,7-5 | |
| WTA Andorra | 11/30 11:00 | 26 | [194] Ella Seidel v Anna-Lena Friedsam [112] | 6-4,6-4 | |
| WTA Andorra | 11/28 17:30 | 25 | [158] Zeynep Sonmez v Ella Seidel [194] | 1-6,0-6 | |
| ITF W60 - Bratislava | 11/04 13:55 | 29 | [232] Ella Seidel v Sofya Lansere [221] | 6-4,7-6 | |
| ITF W60 - Bratislava | 11/03 13:00 | 28 | [232] Ella Seidel v Lea Boskovic [243] | 7-6,3-6,6-1 |