Stadium: S Round: 25
| ITF Women Dothan | 2017/04/22 17:30 | Kristie Ahn v Barbara Haas | 6-2,6-2 |
| ITF Women Pelham | 2018/04/13 16:00 | Aliona Bolsova Zadoinov v Barbara Haas | 6-2,6-2 |
| ITF Women Pelham | 2018/04/12 19:10 | Marine Partaud v Barbara Haas | 2-6,3-6 |
| ITF Women Pelham | 2018/04/10 23:30 | Mari Osaka v Barbara Haas | 6-4,6-7,0-6 |
| ITF Women Jackson | 2018/04/06 15:00 | Whitney Osuigwe v Barbara Haas | 6-0,7-5 |
| ITF Women Jackson | 2018/04/05 16:55 | Sanaz Marand v Barbara Haas | 3-6,2-6 |
| ITF Women Jackson | 2018/04/04 17:05 | Rasheeda McAdoo v Barbara Haas | 7-6,5-7,6-7 |
| ITF Women Santa Margherita | 2018/03/22 16:40 | Anastasiya Vasylyeva v Barbara Haas | 6-0,6-3 |
| ITF Women Sao Paulo | 2018/03/03 14:00 | Julia Grabher v Barbara Haas | 6-2,6-7,6-3 |
| ITF Women Indian Harbour | 2018/04/12 14:00 | Irina Maria Bara v Kristie Ahn | 7-6,7-6 |
| ITF Women Indian Harbour | 2018/04/10 16:00 | Katerina Stewart v Kristie Ahn | 5-7,3-6 |
| WTA Charleston | 2018/04/04 14:00 | Julia Goerges v Kristie Ahn | 2-6,6-4,7-6 |
| WTA Charleston | 2018/04/03 15:25 | Kristie Ahn v Samantha Stosur | 6-2,6-4 |
| WTA Miami Qual | 2018/03/19 15:45 | Stefanie Voegele v Kristie Ahn | 7-5,6-2 |
| WTA Indian Wells Qual | 2018/03/06 20:50 | Lara Arruabarrena v Kristie Ahn | 7-5,6-3 |
| WTA Indian Wells Qual | 2018/03/05 22:20 | Carol Zhao v Kristie Ahn | 6-4,6-7,2-6 |
| WTA Indian Wells | 2018/03/01 22:55 | Kristie Ahn v Sara Errani | 4-6,0-6 |