| WTA San Jose | 08/01 19:20 | 26 | [178] Ahn, Kristie v Elise Mertens [20] | 6-3,6-3 | |
| WTA San Jose | 07/29 21:45 | 25 | [42] Ajla Tomljanovic v Ahn, Kristie [178] | 3-6,6-4,4-6 | |
| WTA San Jose | 07/28 20:55 | 164 | [167] Lao, Danielle v Ahn, Kristie [176] | 1-6,4-6 | |
| WTA San Jose | 07/27 21:15 | 64 | [388] Katie Volynets v Ahn, Kristie [176] | 5-7,0-6 | |
| ITF W60 Berkeley | 07/20 20:30 | 28 | [83] Brengle, Madison v Ahn, Kristie [180] | 6-1,6-3 | |
| ITF W60 Berkeley | 07/19 21:00 | 27 | [206] Arina Rodionova v Ahn, Kristie [180] | 4-6,6-3,3-6 | |
| ITF W60 Berkeley | 07/18 21:40 | 26 | [183] Usue Maitane Arconada v Ahn, Kristie [180] | 5-7,2-6 | |
| ITF W60 Berkeley | 07/17 20:35 | 25 | [465] Moore, Tara v Ahn, Kristie [180] | 3-6,3-6 | |
| Wimbledon Women | 07/01 13:30 | 23 | [190] Ahn, Kristie v Anastasija Sevastova [12] | 3-6,4-6 | |
| Wimbledon Women | 06/27 12:15 | 46 | [96] Lauren Davis v Ahn, Kristie [191] | 4-6,5-7 | |
| Wimbledon Women | 06/26 13:00 | 45 | [191] Ahn, Kristie v Tamara Korpatsch [145] | 6-2,6-0 | |
| Wimbledon Women | 06/25 10:30 | 44 | [352] Broady, Naomi v Ahn, Kristie [191] | 6-7,6-7 | |
| ITF W100 Ilkley | 06/18 11:50 | 45 | [185] Ahn, Kristie v Pattinama Kerkh., L. [202] | 4-6,2-6 | |
| ITF W100 Ilkley | 06/17 15:25 | 45 | [185] Ahn, Kristie v Perez, Ellen [196] | 6-4,6-4 | |
| Manchester, Singles W-ITF-GBR-06A | 06/12 11:10 | 25 | [183] Ahn, Kristie v Robin Anderson [176] | 6-7,1-6 | |
| ITF W100 Surbiton | 06/03 16:15 | 45 | [173] Ahn, Kristie v Lizette Cabrera [258] | 3-6,6-7 | |
| ITF W100 Surbiton | 06/03 13:20 | 45 | [173] Ahn, Kristie v Marina Melnikova [299] | 6-3,6-4 | |
| French Open Women | 05/21 09:30 | 44 | [173] Ahn, Kristie v Bolsova Zadoinov, Aliona [140] | 1-6,4-6 | |
| Kurume, Singles W-ITF-JPN-11A | 05/15 01:00 | 25 | [496] Moyuka Uchijima v Ahn, Kristie [174] | Cancelled | |
| Fukuoka, Singles W-ITF-JPN-10A | 05/11 02:30 | 28 | [185] Ahn, Kristie v Heather Watson [119] | Retired | |
| Fukuoka, Singles W-ITF-JPN-10A | 05/10 02:00 | 27 | [378] Emina Bektas v Ahn, Kristie [185] | 4-6,6-3,0-6 | |
| Fukuoka, Singles W-ITF-JPN-10A | 05/09 04:30 | 26 | [280] Jovic, J. v Ahn, Kristie [185] | 3-6,4-6 | |
| Fukuoka, Singles W-ITF-JPN-10A | 05/08 03:20 | 25 | [331] Hozumi, Eri v Ahn, Kristie [185] | 1-6,5-7 | |
| Gifu, Singles W-ITF-JPN-09A | 04/30 02:35 | 25 | [189] Ahn, Kristie v Ozaki, Risa [271] | 2-6,3-6 | |
| WTA - Bogota | 04/11 01:10 | 26 | [205] Ahn, Kristie v Maria Camila Osorio Serrano [438] | 4-6,7-6,3-6 | |
| WTA - Bogota | 04/10 00:00 | 25 | [29] Jelena Ostapenko v Ahn, Kristie [205] | 6-2,6-7,5-7 | |
| WTA - Bogota | 04/07 15:30 | 64 | [158] Bibiane Schoofs v Ahn, Kristie [190] | 7-5,6-3 | |
| WTA - Bogota | 04/06 15:30 | 45 | [275] Kostic, Natalija v Ahn, Kristie [190] | 5-7,6-2,0-6 | |
| WTA Monterrey | 03/31 21:10 | 46 | [201] Xu, Shilin v Ahn, Kristie [188] | 7-5,6-1 | |
| WTA Monterrey | 03/30 20:20 | 45 | [256] Valeria Savinykh v Ahn, Kristie [188] | 3-6,5-7 |