| Wimbledon Women | 06/28 15:35 | 15 | [157] Katherine Sebov v Brenda Fruhvirtova [137] | 0-6,3-6 | |
| Wimbledon Women | 06/27 10:00 | 14 | [204] Sara Bejlek v Brenda Fruhvirtova [137] | 0-6,5-7 | |
| French Open Women | 05/30 13:35 | 23 | [4] Elena Rybakina v Brenda Fruhvirtova [146] | 6-4,6-2 | |
| French Open Women | 05/26 09:00 | 19 | [190] Alice Robbe v Brenda Fruhvirtova [146] | 3-6,0-6 | |
| French Open Women | 05/24 10:20 | 15 | [393] Kathinka Von Deichmann v Brenda Fruhvirtova [146] | 6-7,1-6 | |
| French Open Women | 05/23 09:40 | 14 | [230] Antonia Ruzic v Brenda Fruhvirtova [146] | 6-3,2-6,6-7 | |
| WTA Madrid | 04/26 10:35 | 23 | [62] Anna Kalinskaya v Brenda Fruhvirtova [145] | 2-6,6-4,6-4 | |
| WTA Miami | 03/21 16:00 | 23 | [142] Brenda Fruhvirtova v Xiyu Wang [58] | 0-6,5-7 | |
| ITF W40 Bengaluru | 03/12 09:30 | 29 | [163] Brenda Fruhvirtova v Ankita Raina [241] | 0-6,6-4,6-0 | |
| ITF W40 Bengaluru | 03/11 06:00 | 28 | [163] Brenda Fruhvirtova v Dalila Jakupovic [243] | 7-6,6-2 | |
| ITF W40 Bengaluru | 03/10 04:30 | 27 | [163] Brenda Fruhvirtova v Priska Madelyn Nugroho [280] | 6-0,7-5 | |
| ITF W40 Bengaluru | 03/09 04:30 | 26 | [163] Brenda Fruhvirtova v Peangtarn Plipuech [311] | 6-4,3-6,6-2 | |
| ITF W40 Bengaluru | 03/08 06:05 | 25 | [163] Brenda Fruhvirtova v Ya-Hsuan Lee [486] | 6-1,6-0 | |
| Australian Open Women | 01/16 03:50 | 23 | [136] Brenda Fruhvirtova v Aliaksandra Sasnovich [38] | 5-7,2-6 | |
| Australian Open Women | 01/12 02:05 | 19 | [183] Jessica Maneiro v Brenda Fruhvirtova [135] | 6-3,6-7,4-6 | |
| Australian Open Women | 01/11 05:00 | 15 | [148] Daria Snigur v Brenda Fruhvirtova [135] | 7-5,6-7,3-6 | |
| Australian Open Women | 01/10 02:05 | 14 | [215] Natalija Stevanovic v Brenda Fruhvirtova [135] | 0-6,6-7 | |
| WTA Auckland | 01/02 05:50 | 25 | [132] Brenda Fruhvirtova v Leylah Fernandez [40] | 1-6,1-6 | |
| WTA Montevideo | 11/24 23:25 | 26 | [130] Brenda Fruhvirtova v Kateryna Baindl [111] | 4-6,0-6 | |
| WTA Montevideo | 11/22 20:05 | 25 | Maria Carle v Brenda Fruhvirtova | 3-6,2-6 | |
| WTA Buenos Aires | 11/15 13:30 | 25 | [133] Brenda Fruhvirtova v Natalija Stevanovic [210] | 6-7,1-6 | |
| WTA Colina | 11/10 18:15 | 26 | [63] Mayar Sherif v Brenda Fruhvirtova [139] | 6-2,4-6,7-5 | |
| WTA Colina | 11/08 15:00 | 25 | [232] Eva Vedder v Brenda Fruhvirtova [139] | 2-6,4-6 | |
| ITF W25 Santa Margherita | 10/23 08:00 | 29 | [138] Ylena In-Albon v Brenda Fruhvirtova [159] | 0-6,1-6 | |
| ITF W25 Santa Margherita | 10/22 09:00 | 28 | [206] Katharina Hobgarski v Brenda Fruhvirtova [159] | 4-6,0-6 | |
| ITF W25 Santa Margherita | 10/21 09:55 | 27 | [400] Anna Turati v Brenda Fruhvirtova [159] | 6-2,2-6,2-6 | |
| ITF W25 Santa Margherita | 10/20 14:10 | 26 | [288] Nina Potocnik v Brenda Fruhvirtova [159] | Retired | |
| ITF W25 Santa Margherita | 10/19 12:00 | 25 | Martina Caregaro v Brenda Fruhvirtova | 3-6,6-7 | |
| ITF W60 San Sebastian | 09/30 09:00 | 27 | [166] Brenda Fruhvirtova v Eva Vedder [242] | 3-6,6-2,4-6 | |
| ITF W60 San Sebastian | 09/29 14:40 | 26 | [166] Brenda Fruhvirtova v Lucia C Llorca [448] | 6-3,7-6 |
Brenda Fruhvirtová (born 2 April 2007) is a Czech professional tennis player.
Fruhvirtová has a career-high singles ranking of world No. 90 achieved on 20 May 2024. She had a career-high ITF junior ranking of world No. 4, achieved on 13 December 2021.