Stadium: Court 1 Round: 45
| WTA Stuttgart Qual | 2018/04/21 11:45 | Krejsova, Petra v Veronika Kudermetova | 2-6,3-6 |
| Istanbul, Singles W-WITF-TUR-28B | 2018/04/10 10:50 | Sharipova, Sabina v Krejsova, Petra | 6-4,6-2 |
| Croissy-Beaubourg,Singles Qualifying W-WITF-FRA-08 | 2018/03/25 14:50 | Krejsova, Petra v Piter, Katarzyna | 2-6,7-6,5-7 |
| Croissy-Beaubourg,Singles Qualifying W-WITF-FRA-08 | 2018/03/24 09:00 | Krejsova, Petra v Akgul Amanmuradova | 6-2,6-3 |
| Altenkirchen, Singles W-WITF-GER-02A | 2018/02/20 15:30 | Krejsova, Petra v Jesika Maleckova | 1-6,4-6 |
| ITF Women Loughborough | 2018/02/07 12:15 | Krejsova, Petra v Valentini Grammatikopoulou | 5-7,1-6 |
| Glasgow, Simples W-WITF-GBR-01A | 2018/01/31 11:50 | Krejsova, Petra v Kathinka Von Deichmann | 2-6,1-6 |
| ITF Women Stuttgart | 2018/01/23 16:40 | Krejsova, Petra v Koelzer, Romy | 1-6,2-6 |
| WTA - Stuttgart | 2018/04/24 09:30 | Marta Kostyuk v Lottner, Antonia | 6-4,6-1 |
| WTA Lugano Qual | 2018/04/09 15:35 | Lottner, Antonia v Tamara Korpatsch | 1-6,6-4,1-6 |
| WTA Lugano Qual | 2018/04/08 12:15 | Lottner, Antonia v Veronika Kudermetova | 4-6,7-5,6-4 |
| Croissy-Beaubourg, Singles W-WITF-FRA-09A | 2018/03/27 08:00 | Lottner, Antonia v Muchova, Karolina | 3-6,5-7 |
| WTA Miami Qual | 2018/03/19 14:00 | Niculescu, Monica v Lottner, Antonia | 6-4,6-0 |
| WTA Budapest | 2018/02/19 16:50 | Lottner, Antonia v Petra Martic | 4-6,2-6 |
| Fed Cup, Groupe Mondial | 2018/02/11 12:20 | Aryna Sabalenka v Lottner, Antonia | 6-3,5-7,6-2 |
| Fed Cup, Groupe Mondial | 2018/02/10 13:00 | Aliaksandra Sasnovich v Lottner, Antonia | 5-7,4-6 |