| ITF - W15 Monastir | 08/17 09:45 | 26 | Ekaterina Shalimova v Radka Zelnickova | 6-1,6-3 | |
| ITF - W15 Monastir | 08/16 10:05 | 25 | Radka Zelnickova v Aryana Bartlett | 6-0,6-0 | |
| ITF - W15 Monastir | 08/15 08:30 | 44 | Radka Zelnickova v Laura Cilekova | 6-1,6-3 | |
| ITF - W15 Monastir | 08/14 10:30 | 44 | Radka Zelnickova v Katie Dyson | 6-1,6-3 | |
| ITF - W60 Barcelona | 07/30 11:00 | 54 | Chelsea Fontenel v Radka Zelnickova | 6-3,6-3 | |
| ITF - W40 Porto | 07/18 10:55 | 24 | Tenika Mcgiffin v Radka Zelnickova | 6-0,6-3 | |
| ITF - W60 Roma | 07/11 09:45 | 54 | Radka Zelnickova v Anika Jaskova | Retired | |
| ITF - W60 Liepāja | 07/05 07:55 | 25 | [205] Lucie Havlickova v Radka Zelnickova [377] | 6-3,6-4 | |
| ITF - W60 Liepāja | 07/03 13:30 | 24 | [377] Radka Zelnickova v Georgia Pedone [424] | 6-4,6-4 | |
| ITF - W60 Říčany | 06/13 11:10 | 24 | Sofia Milatova v Radka Zelnickova | 6-4,6-2 | |
| ITF - W40 Otočec | 05/29 12:15 | 24 | [415] Diletta Cherubini v Radka Zelnickova [394] | 6-2,6-1 | |
| ITF - W40 Otočec | 05/22 12:05 | 24 | Radka Zelnickova v Karolina Kozakova | 6-3,5-7,4-6 | |
| ITF - W60 Bodrum | 05/16 07:30 | 54 | Radka Zelnickova v Eva Garkusha | 6-3,2-6,3-6 | |
| ITF - W100 Trnava | 05/10 10:30 | 25 | [201] Chloe Paquet v Radka Zelnickova [485] | 6-4,6-2 | |
| ITF - W25 Nottingham | 04/18 11:05 | 25 | [434] Manon Leonard v Radka Zelnickova [475] | 6-4,7-6 | |
| ITF - W40 Murska Sobota | 03/28 09:45 | 25 | [270] Lola Radivojevic v Radka Zelnickova [494] | 6-3,6-3 | |
| ITF - W40 Murska Sobota | 03/27 11:30 | 45 | Radka Zelnickova v Anika Jaskova | 6-3,6-1 | |
| ITF - W15 Sharm El Sheikh | 03/24 08:30 | 27 | Radka Zelnickova v Polina Iatcenko | 2-6,1-6 | |
| ITF - W15 Sharm El Sheikh | 03/23 11:25 | 26 | Radka Zelnickova v Lara Schmidt | 6-1,6-2 | |
| ITF - W15 Sharm El Sheikh | 03/22 07:30 | 25 | Radka Zelnickova v Louise Kwong | 6-2,4-6,6-1 | |
| ITF - W15 Sharm El Sheikh | 03/17 07:30 | 27 | Polina Iatcenko v Radka Zelnickova | 4-6,6-2,6-3 | |
| ITF - W15 Sharm El Sheikh | 03/16 10:30 | 26 | [470] Andre Lukosiute v Radka Zelnickova [425] | Retired | |
| ITF - W15 Sharm El Sheikh | 03/15 13:25 | 25 | Aleksandra Pospelova v Radka Zelnickova | 4-6,2-6 | |
| ITF - W60 Trnava | 03/10 10:00 | 27 | [345] Lucie Havlickova v Radka Zelnickova [425] | 6-3,5-7,6-3 | |
| ITF - W60 Trnava | 03/09 10:30 | 26 | [425] Radka Zelnickova v Julia Grabher [93] | 6-4,6-0 | |
| ITF - W60 Trnava | 03/08 10:45 | 25 | [222] Darja Semenistaja v Radka Zelnickova [425] | 6-7,6-4,5-7 | |
| ITF - W60 Trnava | 03/07 10:40 | 54 | [425] Radka Zelnickova v Aneta Kucmova [386] | 6-3,6-1 | |
| ITF - W60 Trnava | 03/06 11:25 | 54 | [339] Tayisiya Morderger v Radka Zelnickova [425] | 4-6,5-7 | |
| ITF - W60 Trnava | 03/06 10:30 | 54 | Rebecca Sramkova v Radka Zelnickova | Cancelled | |
| ITF - W60 Trnava | 03/01 11:05 | 25 | Oceane Dodin v Radka Zelnickova | 7-6,6-1 |