Stadium: Court 1 - Giannini Round: 25
| ITF Women Stuttgart | 2018/06/28 10:00 | Pemra Ozgen v Diana Marcinkevica | 6-3,6-2 |
| ITF Women Stuttgart | 2018/06/26 13:00 | Tammi Patterson v Diana Marcinkevica | 5-7,2-6 |
| ITF Women Klosters | 2018/06/19 08:00 | Amra Sadikovic v Diana Marcinkevica | 6-4,6-0 |
| ITF Women Essen | 2018/06/12 12:00 | Pemra Ozgen v Diana Marcinkevica | 6-4,6-2 |
| ITF Women Brescia | 2018/06/05 12:50 | Diana Marcinkevica v Kayla Day | 6-0,6-1 |
| ITF Women Grado | 2018/05/28 08:30 | Renata Zarazua v Diana Marcinkevica | 6-2,6-7,6-2 |
| WTA Strasbourg Qual | 2018/05/18 11:55 | Jessica Pieri v Diana Marcinkevica | 3-6,7-5,6-3 |
| ITF Women Cagnes-Sur-Mer Qual | 2018/05/05 12:10 | Harmony Tan v Diana Marcinkevica | 7-6,6-4 |
| ITF Women Tarvisio | 2018/06/26 11:10 | Camilla Abbate v Nina Potocnik | 1-6,0-6 |
| ITF Women Padova | 2018/06/14 18:00 | Nina Potocnik v Martina Di Giuseppe | 6-7,3-6 |
| ITF Women Padova | 2018/06/12 09:00 | Nina Potocnik v Lucia Bronzetti | 6-1,7-6 |
| ITF Women Stare Splavy | 2018/06/07 11:45 | Nina Potocnik v Kimberley Zimmermann | 6-3,4-6,2-6 |
| ITF Women Stare Splavy | 2018/06/05 08:00 | Sarah Rebecca Sekulic v Nina Potocnik | 1-6,1-6 |
| ITF Women Stare Splavy Qual | 2018/06/04 11:05 | Nina Potocnik v Aneta Kucmova | 6-2,6-3 |
| ITF Women Stare Splavy Qual | 2018/06/03 15:15 | Nina Potocnik v Linda Sevcikova | 6-0,6-2 |
| ITF Women Balatonboglar | 2018/05/02 10:55 | Miriam Bulgaru v Nina Potocnik | 6-3,7-5 |