Stadium: C Round: 27
| ITF Women Saint Malo | 2016/09/21 09:30 | Polina Leykina v Barbara Haas | 0-6,0-6 |
| ITF Women Torino | 2018/07/11 09:00 | Barbara Haas v Eleni Kordolaimi | 6-1,6-2 |
| ITF Women Torino | 2018/07/10 11:30 | Barbara Haas v Isabella Shinikova | 6-2,6-4 |
| Wimbledon Women Qual | 2018/06/28 10:00 | Barbara Haas v Elena-Gabriela Ruse | 0-6,5-7 |
| Wimbledon Women Qual | 2018/06/27 10:00 | Dayana Yastremska v Barbara Haas | 4-6,2-6 |
| Wimbledon Women Qual | 2018/06/26 12:05 | Bibiane Schoofs v Barbara Haas | 6-3,4-6,5-7 |
| ITF Women Ilkley Qual | 2018/06/17 12:10 | Karolina Muchova v Barbara Haas | 6-3,6-4 |
| WTA Hertogenbosch Qual | 2018/06/09 09:50 | Katarzyna Piter v Barbara Haas | 6-3,6-4 |
| French Open Women Qual | 2018/05/23 11:40 | Barbara Haas v Magdalena Frech | 3-6,6-7 |
| ITF Women Torino | 2018/07/11 09:00 | Martina Caregaro v Polina Leykina | 2-6,6-4,3-6 |
| ITF Women Torino | 2018/07/10 08:30 | Polina Leykina v Monika Kilnarova | 6-2,6-3 |
| ITF Women Aschaffenburg | 2018/07/05 11:00 | Julia Terziyska v Polina Leykina | 6-2,3-6,6-3 |
| ITF Women Aschaffenburg | 2018/07/03 13:15 | Polina Leykina v Kimberley Zimmermann | 6-3,6-4 |
| ITF Women Ystad | 2018/06/19 10:55 | Romy Koelzer v Polina Leykina | 6-4,6-2 |
| ITF Women Essen | 2018/06/13 10:30 | Cindy Burger v Polina Leykina | 7-6,6-0 |
| ITF Women Essen | 2018/06/12 10:30 | Polina Leykina v Chanel Simmonds | 6-4,6-1 |
| ITF Women Les Franqueses | 2018/05/24 10:40 | Polina Leykina v Olga Saez Larra | 4-6,3-6 |