| Wimbledon Women Qual | 06/27 10:00 | 45 | [108] Ying-Ying Duan v Bianca Andreescu [184] | 4-6,3-6 | |
| Wimbledon Women Qual | 06/26 13:30 | 44 | [108] Ying-Ying Duan v Cagla Buyukakcay [186] | 6-0,6-3 | |
| WTA Nottingham | 06/14 15:10 | 26 | [17] Ashleigh Barty v Ying-Ying Duan [111] | 6-3,6-2 | |
| WTA Nottingham | 06/11 15:15 | 25 | [288] Valeria Savinykh v Ying-Ying Duan [111] | 2-6,2-6 | |
| Franska öppna - Damer | 05/29 14:40 | 23 | [111] Ying-Ying Duan v Caroline Garcia [7] | 1-6,0-6 | |
| ITF Women Quanzhou | 04/25 07:10 | 26 | [109] Ying-Ying Duan v Fangzhou Liu [179] | 3-6,5-7 | |
| ITF Women Quanzhou | 04/24 05:00 | 25 | [109] Ying-Ying Duan v Mai Minokoshi [302] | 6-2,6-4 | |
| WTA Zhengzhou | 04/19 07:00 | 26 | [104] Ying-Ying Duan v Jia-Jing Lu [234] | 2-6,6-4,3-6 | |
| WTA Zhengzhou | 04/17 03:00 | 25 | [104] Ying-Ying Duan v Ankita Raina [194] | 6-3,5-7,6-3 | |
| WTA Miami Qual | 03/19 15:45 | 44 | [97] Ying-Ying Duan v Yafan Wang [125] | Retired | |
| WTA Indian Wells | 03/07 23:15 | 23 | Ying-Ying Duan v Kristyna Pliskova | 4-6,6-7 | |
| WTA Indian Wells Qual | 03/06 22:15 | 45 | Ying-Ying Duan v Jana Cepelova | 6-1,6-3 | |
| WTA Indian Wells Qual | 03/06 00:05 | 44 | Ying-Ying Duan v Kristina Kucova | 6-4,6-3 | |
| WTA Indian Wells | 03/01 18:50 | 26 | Ying-Ying Duan v Viktorija Golubic | 6-7,3-6 | |
| WTA Indian Wells | 02/27 18:00 | 25 | Ying-Ying Duan v Kurumi Nara | 7-6,6-3 | |
| WTA Dubai Qual | 02/17 08:40 | 45 | Lesia Tsurenko v Ying-Ying Duan | 5-7,7-5,6-4 | |
| WTA Doha | 02/13 13:10 | 25 | Ying-Ying Duan v Garbine Muguruza | 3-6,4-6 | |
| WTA Doha | 02/12 12:30 | 24 | Ons Jabeur v Ying-Ying Duan | 2-6,3-6 | |
| WTA Doha Qual | 02/11 12:30 | 46 | Vera Zvonareva v Ying-Ying Duan | 6-7,7-6,3-6 | |
| WTA Doha Qual | 02/10 10:40 | 45 | Barbora Krejcikova v Ying-Ying Duan | 6-7,4-6 | |
| WTA Taipei | 01/31 05:15 | 26 | Ying-Ying Duan v Kateryna Kozlova | 6-3,2-6,6-7 | |
| WTA Taipei | 01/29 04:00 | 25 | Ying-Ying Duan v Miyu Kato | 6-2,4-6,7-5 | |
| Australian Open - Damer | 01/17 05:45 | 24 | Jelena Ostapenko v Ying-Ying Duan | 6-3,3-6,6-4 | |
| Australian Open - Damer | 01/15 00:00 | 23 | Ying-Ying Duan v Mariana Duque Marino | 6-0,6-1 | |
| WTA Sydney Qual | 01/06 02:50 | 46 | Ying-Ying Duan v Monica Puig | 6-3,4-6,5-7 | |
| WTA Sydney Qual | 01/05 04:00 | 45 | Ying-Ying Duan v Isabelle Wallace | 6-2,6-2 | |
| WTA Shenzhen | 01/03 08:15 | 26 | Simona Halep v Ying-Ying Duan | 3-6,6-1,6-2 | |
| WTA Shenzhen | 12/31 09:35 | 25 | Ying-Ying Duan v Evgeniya Rodina | 6-2,7-5 | |
| WTA Taipei | 11/15 04:00 | 25 | [93] Ying-Ying Duan v Belinda Bencic [120] | 6-7,4-6 | |
| WTA Hua Hin | 11/10 08:00 | 27 | [95] Ying-Ying Duan v Ana Bogdan [115] | 1-6,3-6 |