Stadium: Hard 6 Round: 44 Ground: Clay
| Bucha, Singles W-ITF-UKR-02A | 2019/09/04 08:00 | Stepan, Constanze v Gubina, Polina | 6-3,0-6,6-2 |
| Antalya, Singles Qualifying W-WITF-TUR-08A | 2018/10/18 07:00 | Emma Raducanu v Gubina, Polina | 6-3,6-4 |
| Antalya, Singles Qualifying W-WITF-TUR-08A | 2018/10/17 07:00 | Eva Garkusha v Gubina, Polina | 1-6,7-6,3-6 |
| Antalya, Singles Qualifying W-WITF-TUR-08A | 2018/10/08 08:20 | Gubina, Polina v Negoitescu, Ioana Alexandra | 5-7,1-6 |
| ITF Women Biella Qual | 2018/07/29 08:00 | Aurora Zantedeschi v Gubina, Polina | 6-4,6-1 |
| Matchs amicaux U18 | 2018/07/08 11:00 | Rosenqvist, Julia v Gubina, Polina | 6-2,3-6,6-0 |
| Matchs amicaux U18 | 2018/07/08 07:30 | Gubina, Polina v Sapfo Sakellaridi | 6-4,6-2 |
| ITF Women Hong Kong | 2017/07/22 04:00 | So, Kumi v Gubina, Polina | 6-2,6-4 |
| ITF - W15 Antalya | 2019/10/07 07:00 | Niedermeier, Michaela v Ioana Zvonaru | 6-4,6-1 |
| ITF - W15 Antalya | 2019/10/06 07:00 | Ioana Zvonaru v Stefanie Auer | 6-3,6-3 |
| ITF W15 Sozopol | 2019/10/01 08:20 | Ioana Zvonaru v Lia Karatancheva | 3-6,5-7 |
| Antalya, Singles Qualifying W-WITF-TUR-08A | 2018/12/16 10:30 | Helbet, Julia v Ioana Zvonaru | 6-7,6-4,7-6 |