| WTA Charleston | 03/11 14:00 | 19 | [98] Erika Andreeva v Nadiia Kichenok [53] | 6-1,6-4 | |
| WTA Charleston | 03/10 16:55 | 14 | [334] Raveena Kingsley v Nadiia Kichenok [53] | 6-7,6-3,3-6 | |
| WTA Guadalajara | 10/15 17:35 | 14 | [76] Linda Fruhvirtova v Nadiia Kichenok [80] | 6-1,6-1 | |
| WTA Seoul | 09/17 02:15 | 14 | [194] Valentini Grammatikopoulou v Nadiia Kichenok [105] | 7-5,6-7,6-0 | |
| WTA Granby | 08/21 15:30 | 19 | Nadiia Kichenok v Cadence Brace | 3-6,4-6 | |
| WTA Granby | 08/20 21:05 | 14 | [70] Nadiia Kichenok v Olivia Tjandramulia [421] | 6-4,7-6 | |
| WTA Charleston | 04/04 16:00 | 24 | [283] Ulrikke Eikeri v Nadiia Kichenok [42] | 5-7,6-2,6-2 | |
| WTA Charleston | 04/03 15:00 | 19 | [41] Nadiia Kichenok v Catherine Harrison [269] | 6-1,6-0 | |
| WTA Charleston | 04/02 15:40 | 14 | [163] Christina McHale v Nadiia Kichenok [41] | 3-6,6-4,4-6 | |
| WTA Chicago | 09/25 21:05 | 25 | [122] Beatriz Haddad Maia v Nadiia Kichenok [36] | 6-1,6-1 | |
| WTA Abu Dhabi | 01/05 09:40 | 64 | [263] Jodie Anna Burrage v Nadiia Kichenok [50] | 6-2,6-3 | |
| UTF Invitational Women | 05/30 13:00 | - | Marta Kostyuk v Nadiia Kichenok | View | |
| UTF Invitational Women | 05/28 08:30 | - | Nadiia Kichenok v Mariia Bergen | View | |
| UTF Invitational Women | 05/27 07:00 | - | Nadiia Kichenok v Marianna Zakarlyuk | 6-3,3-6,3-6 | |
| WTA Moscow | 10/12 14:20 | 45 | [40] Nadiia Kichenok v Anastasia Zakharova [376] | 4-6,4-6 | |
| ITF W60 Meitar | 09/10 12:35 | 25 | [46] Nadiia Kichenok v Katharina Hobgarski [206] | 5-7,3-6 | |
| ITF W60 Meitar | 09/09 12:20 | 45 | [443] Sarah Rebecca Sekulic v Nadiia Kichenok [47] | 6-4,2-6,7-10 | |
| ITF W60 Meitar | 09/09 07:00 | 45 | Kristin Younes v Nadiia Kichenok | 0-6,2-6 | |
| WTA New York | 08/18 16:15 | 46 | [77] Kaia Kanepi v Nadiia Kichenok [49] | 6-7,6-1,6-2 | |
| WTA New York | 08/17 18:30 | 45 | [49] Nadiia Kichenok v Natalia Vikhlyantseva [96] | 6-4,1-6,6-4 | |
| WTA New York | 08/16 17:00 | 44 | Elysia Bolton v Nadiia Kichenok | 6-7,6-7 | |
| WTA San Jose | 07/27 18:30 | 64 | [44] Nadiia Kichenok v En Shuo Liang [177] | 1-6,6-7 | |
| WTA Charleston | 04/01 18:30 | 24 | [159] Martina Trevisan v Nadiia Kichenok [42] | 6-2,6-1 | |
| WTA Charleston | 03/31 14:30 | 46 | [154] Caroline Dolehide v Nadiia Kichenok [41] | 6-7,6-4,6-7 | |
| WTA Charleston | 03/30 15:40 | 45 | [41] Nadiia Kichenok v Sofya Zhuk [180] | 7-6,6-3 | |
| 2018 Fed Cup | 02/11 01:20 | 27 | Daria Gavrilova v Nadiia Kichenok | 6-4,2-6,3-6 | |
| WTA Dubai Qual | 02/17 07:25 | 45 | Risa Ozaki v Nadiia Kichenok | 6-3,6-4 | |
| WTA Limoges Qual | 11/12 12:00 | 45 | Nadiia Kichenok v Akgul Amanmuradova | Retired | |
| ITF Women Minsk Qual | 11/07 12:21 | - | Nadiia Kichenok v Karin Kennel | 6-2,3-6,3-5 | |
| ITF Women Minsk | 11/06 23:00 | 54 | Nadiia Kichenok v Karin Kennel | 6-2,3-6,3-6 |