| Australian Open Women Qual | 01/14 01:10 | 46 | Danielle Collins v Denisa Allertova | 0-6,1-6 | |
| Australian Open Women Qual | 01/13 02:15 | 45 | Elitsa Kostova v Denisa Allertova | 6-7,2-6 | |
| Australian Open Women Qual | 01/10 23:00 | 44 | Carol Zhao v Denisa Allertova | 3-6,0-6 | |
| ITF Women Poitiers | 10/24 12:00 | 25 | [123] Denisa Allertova v Belinda Bencic [192] | 1-6,1-6 | |
| WTA Luxembourg | 10/17 08:00 | 25 | [110] Denisa Allertova v Kiki Bertens [30] | 4-6,5-7 | |
| WTA Linz | 10/10 17:55 | 25 | [100] Jana Fett v Denisa Allertova [104] | 7-5,6-2 | |
| WTA Tashkent | 09/27 07:30 | 26 | [90] Denisa Allertova v Timea Babos [52] | 3-6,3-6 | |
| WTA Tashkent | 09/25 08:15 | 25 | [95] Denisa Allertova v Jana Fett [99] | 6-2,3-6,6-3 | |
| WTA Seoul | 09/20 03:00 | 26 | [95] Denisa Allertova v Richel Hogenkamp [119] | 4-6,4-6 | |
| WTA Seoul | 09/19 03:00 | 25 | [105] Andrea Petkovic v Denisa Allertova [95] | 2-6,5-7 | |
| US Open Women | 08/31 15:00 | 24 | [90] Denisa Allertova v Naomi Osaka [45] | 3-6,6-4,5-7 | |
| US Open Women | 08/30 17:50 | 23 | [90] Denisa Allertova v Rebecca Peterson [196] | 6-2,7-6 | |
| ITF Women Prague | 07/29 09:00 | 28 | [74] Marketa Vondrousova v Denisa Allertova [100] | 6-0,4-6,6-3 | |
| ITF Women Prague | 07/28 11:50 | 27 | [100] Denisa Allertova v Anhelina Kalinina [207] | 6-0,6-3 | |
| ITF Women Prague | 07/27 09:50 | 26 | [100] Denisa Allertova v Cagla Buyukakcay [158] | 7-5,6-2 | |
| ITF Women Prague | 07/26 14:00 | 25 | [100] Denisa Allertova v Katarzyna Piter [224] | 7-6,6-4 | |
| ITF Women Olomouc | 07/22 11:15 | 28 | [41] Kristyna Pliskova v Denisa Allertova [106] | 5-7,6-4,6-1 | |
| ITF Women Olomouc | 07/21 11:05 | 27 | Denisa Allertova v Lucie Hradecka | 6-3,6-4 | |
| ITF Women Olomouc | 07/18 09:55 | 25 | Denisa Allertova v Raluca Georgiana Serban | 6-1,6-1 | |
| Wimbledon Women | 07/06 16:00 | 24 | [135] Petra Martic v Denisa Allertova [107] | 6-1,6-4 | |
| Wimbledon Women | 07/04 13:40 | 23 | [107] Denisa Allertova v Risa Ozaki [77] | 7-6,2-6,6-3 | |
| ITF Women Ilkley | 06/22 11:35 | 26 | [105] Denisa Allertova v Marina Erakovic [148] | 2-6,4-6 | |
| ITF Women Ilkley | 06/21 14:35 | 25 | [84] Evgeniya Rodina v Denisa Allertova [105] | 6-7,4-6 | |
| ITF Women Barcelona | 06/13 10:00 | 25 | [106] Denisa Allertova v Basak Eraydin [198] | 6-4,4-6,1-6 | |
| ITF Women Marseille | 06/09 09:30 | 27 | [154] Dalma Galfi v Denisa Allertova [104] | 6-3,6-1 | |
| ITF Women Marseille | 06/08 10:55 | 26 | [215] Amandine Hesse v Denisa Allertova [104] | 2-6,6-3,4-6 | |
| ITF Women Marseille | 06/07 08:00 | 25 | [156] Ipek Soylu v Denisa Allertova [104] | 1-6,4-6 | |
| WTA Prague Qual | 05/01 08:00 | 54 | [81] Mona Barthel v Denisa Allertova [107] | 6-0,6-3 | |
| WTA Prague Qual | 04/30 09:25 | 46 | [145] Anna Kalinskaya v Denisa Allertova [107] | 4-6,1-6 | |
| WTA Prague Qual | 04/29 13:10 | 45 | [148] Isabella Shinikova v Denisa Allertova [107] | 4-6,1-6 |