| WTA Maiorca | 06/21 14:45 | 26 | [140] Antonia Lottner v Anastasija Sevastova [20] | 6-1,3-6,1-6 | |
| WTA Maiorca | 06/19 09:00 | 25 | [140] Antonia Lottner v Aliaksandra Sasnovich [51] | 6-4,6-0 | |
| WTA Maiorca - Qual. | 06/18 11:50 | 64 | [140] Antonia Lottner v Ysaline Bonaventure [118] | 3-6,6-3,6-4 | |
| WTA Maiorca - Qual. | 06/17 11:45 | 45 | [87] Andrea Petkovic v Antonia Lottner [148] | 2-6,6-7 | |
| WTA Hertogenbosch | 06/15 14:30 | 27 | [81] Viktoria Kuzmova v Antonia Lottner [148] | 6-3,6-2 | |
| WTA Hertogenbosch | 06/14 17:05 | 26 | [148] Antonia Lottner v Elise Mertens [15] | 7-5,6-3 | |
| WTA Hertogenbosch | 06/12 11:30 | 25 | [108] Anna Blinkova v Antonia Lottner [148] | 2-6,6-3,2-6 | |
| WTA Den Bosch - Qual. | 06/10 10:20 | 64 | [147] Antonia Lottner v Renata Zarazua [200] | 6-3,6-3 | |
| WTA Den Bosch - Qual. | 06/09 08:30 | 45 | [147] Antonia Lottner v Urszula Radwanska [374] | 2-6,7-5,7-5 | |
| Open di Francia Femminile - Qual. | 05/22 12:00 | 44 | [169] Sabina Sharipova v Antonia Lottner [149] | 6-2,6-4 | |
| ITF Femminile Trnava | 05/16 09:00 | 25 | [161] Tereza Martincova v Antonia Lottner [147] | Retired | |
| WTA Praga | 05/02 09:00 | 26 | [158] Antonia Lottner v Mihaela Buzarnescu [37] | 0-6,6-7 | |
| WTA Praga | 05/01 09:00 | 25 | [66] Mona Barthel v Antonia Lottner [158] | 0-6,5-7 | |
| WTA Praga - Qual. | 04/30 09:40 | 54 | [144] Jasmine Paolini v Antonia Lottner [158] | 3-6,5-7 | |
| WTA Praga - Qual. | 04/29 10:55 | 46 | Barbora Stefkova v Antonia Lottner | 2-6,0-6 | |
| WTA Praga - Qual. | 04/28 09:30 | 45 | [318] Petra Krejsova v Antonia Lottner [155] | 4-6,3-6 | |
| WTA Stoccarda | 04/24 09:30 | 25 | [158] Marta Kostyuk v Antonia Lottner [155] | 6-4,6-1 | |
| WTA Lugano - Qual. | 04/09 15:35 | - | [150] Antonia Lottner v Tamara Korpatsch [176] | 1-6,6-4,1-6 | |
| WTA Lugano - Qual. | 04/08 12:15 | 45 | [152] Antonia Lottner v Veronika Kudermetova [190] | 4-6,7-5,6-4 | |
| ITF femminile Croissy-Beaubourg | 03/27 08:00 | 25 | [150] Antonia Lottner v Karolina Muchova [240] | 3-6,5-7 | |
| WTA Miami Qual. | 03/19 14:00 | 44 | [70] Monica Niculescu v Antonia Lottner [150] | 6-4,6-0 | |
| WTA Budapest | 02/19 16:50 | 25 | Antonia Lottner v Petra Martic | 4-6,2-6 | |
| Fed Cup 2018 | 02/11 12:20 | 27 | Aryna Sabalenka v Antonia Lottner | 6-3,5-7,6-2 | |
| Fed Cup 2018 | 02/10 13:00 | 27 | Aliaksandra Sasnovich v Antonia Lottner | 5-7,4-6 | |
| ITF femminile Andrezieux-Boutheon | 01/23 11:10 | 25 | Antonia Lottner v Audrey Albie | 3-6,2-6 | |
| Australian Open femminili - Qual. | 01/12 00:30 | 45 | Antonia Lottner v Anna Blinkova | 7-5,4-6,5-7 | |
| Australian Open femminili - Qual. | 01/11 01:00 | 44 | Deborah Chiesa v Antonia Lottner | 6-2,6-7,3-6 | |
| WTA Brisbane - Qual. | 12/29 00:00 | 45 | Antonia Lottner v Kristie Ahn | 5-7,1-6 | |
| WTA Limoges | 11/12 14:00 | 29 | [100] Monica Niculescu v Antonia Lottner [201] | 6-4,6-2 | |
| WTA Limoges | 11/11 17:05 | 28 | [268] Sabine Lisicki v Antonia Lottner [201] | Retired |