Stadium: Court 2 Round: 25 Ground: Hardcourt outdoor
| ITF Women Minsk | 2018/11/04 10:20 | Koval, Vlada v Paulenka, Katyarina | 6-7,3-6 |
| WTA Moscow | 2018/10/14 10:50 | Koval, Vlada v Vikhlyantseva, Natalia | 6-7,3-6 |
| WTA Moscow | 2018/10/13 16:35 | Koval, Vlada v Lisicki, Sabine | 3-6,7-5,7-6 |
| Shymkent, Singles W-WITF-KAZ-08A | 2018/09/20 05:00 | Koval, Vlada v Shusharina, Maria | 3-6,6-1,3-6 |
| Shymkent, Singles W-WITF-KAZ-08A | 2018/09/19 04:00 | Koval, Vlada v Ania Hertel | 6-2,6-3 |
| Shymkent, Singles W-WITF-KAZ-08A | 2018/09/17 03:30 | Koval, Vlada v Khabibulina, Albina | 6-1,6-3 |
| Almaty, Singles Qualifying W-WITF-KAZ-01A | 2018/09/14 07:00 | Koval, Vlada v Daria Lodikova | 3-6,3-6 |
| Almaty, Singles Qualifying W-WITF-KAZ-01A | 2018/09/13 05:00 | Koval, Vlada v Dmitrichenko, Yekaterina | 6-2,6-2 |
| Hong Kong, Simples W-ITF-HKG-01B | 2019/01/07 03:30 | Moore, Tara v Imanishi, Miharu | 6-3,6-3 |
| Hong Kong, Simples W-ITF-HKG-01B | 2019/01/03 07:35 | Minokoshi, Mai v Imanishi, Miharu | 1-6,6-4,6-4 |
| Hong Kong, Simples W-ITF-HKG-01B | 2019/01/01 04:00 | Inoue, Miyabi v Imanishi, Miharu | 4-6,7-5,9-11 |
| Hong Kong, Simples W-ITF-HKG-01B | 2018/12/31 04:00 | AL Nabhani, Fatma v Imanishi, Miharu | 3-6,1-6 |
| Open d'Australie Asie-Pacifique Wildcard Playoff | 2018/11/29 02:00 | Peng, Shuai v Imanishi, Miharu | 6-0,7-5 |
| ITF Women Norman | 2018/11/16 16:30 | Katie Volynets v Imanishi, Miharu | 6-3,7-6 |
| ITF Women Norman | 2018/11/15 16:40 | Montez, Pamela v Imanishi, Miharu | 2-6,4-6 |
| ITF Women Norman | 2018/11/13 17:35 | Chieh-Yu Hsu v Imanishi, Miharu | 4-6,6-4,5-7 |