| UTR Pro Olomouc Women | 2023/08/18 07:30 | Katerina Mandelikova v Nikola Breckova | 4-6,2-6 |
| UTR Pro Olomouc Women | 2023/08/16 08:20 | Katerina Mandelikova v Liebkind, Nikita | 4-6,5-7 |
| UTR Pro Olomouc Women | 2023/08/15 06:00 | Katerina Mandelikova v Adrianna Sosnowska | 6-3,6-4 |
| UTR Pro Olomouc Women | 2023/08/14 08:57 | Styliani Roussopoulou v Katerina Mandelikova | 1-6,6-7 |
| ITF W15 Savitaipale | 2023/08/01 07:00 | Katerina Mandelikova v Johanna Silva | 3-6,1-6 |
| ITF W15 Savitaipale | 2023/07/31 07:00 | Darya Velikova v Katerina Mandelikova | 2-6,5-7 |
| ITF W60 Olomouc | 2023/07/16 11:05 | Federica Di Sarra v Katerina Mandelikova | 6-3,6-3 |
| ITF W15 Bacau | 2023/07/12 13:40 | Katerina Mandelikova v Laura Hietaranta | 5-7,1-6 |
| UTR Pro Olomouc Women | 2023/08/18 06:00 | Katrin Pavkova v Katherine Barnes | 2-6,1-6 |
| UTR Pro Olomouc Women | 2023/08/17 09:00 | Nina Ugrelidze v Katherine Barnes | 2-6,1-5 |
| UTR Pro Olomouc Women | 2023/08/15 10:39 | Adela Latalova v Katherine Barnes | 4-6,0-5 |
| UTR Pro Olomouc Women | 2023/08/14 06:00 | Katherine Barnes v Pairone, Giulia | 4-6,6-3,3-6 |
| UK Pro League Women | 2023/06/01 13:00 | Katherine Barnes v Candy Wai | 6-0,6-4 |
| UK Pro League Women | 2023/05/30 10:30 | Alice Gillan v Katherine Barnes | 1-6,6-2,6-10 |
| UK Pro League Women | 2023/05/28 10:30 | Given Roach v Katherine Barnes | 6-2,7-6 |
| UTR Pro Easton Women | 2023/04/08 08:00 | Mujan, Gabriella v Katherine Barnes | 6-0,6-3 |