| UTR Pro Baton Rouge Women | 12/02 19:00 | - | Mertena, Rebeka Margareta v Kenna Erickson | 6-4,2-5 | |
| UTR Pro Baton Rouge Women | 12/01 21:30 | - | Mertena, Rebeka Margareta v Georgia Cranford | 6-3,6-1 | |
| UTR Pro Baton Rouge Women | 11/29 20:00 | - | Mertena, Rebeka Margareta v Alice Otis | 6-4,4-6,6-3 | |
| UTR Pro Baton Rouge Women | 11/27 22:59 | - | 사흐디에바, 아니타 v Mertena, Rebeka Margareta | 7-6,6-4 | |
| ITF W60 Liepaja | 07/04 15:10 | 24 | Mertena, Rebeka Margareta v 시에드리스카, 나탈리아 | 6-7,6-1,3-6 | |
| UTR Pro Florida Women | 01/08 17:16 | - | Ekaterina Khayrutdinova v Mertena, Rebeka Margareta | 2-6,6-3,2-6 | |
| UTR Pro Florida Women | 01/07 16:00 | - | Ellie Schoppe v Mertena, Rebeka Margareta | 3-6,6-2,3-5 | |
| UTR Pro Florida Women | 01/05 16:30 | - | Karsyn Evans v Mertena, Rebeka Margareta | 1-6,0-6 | |
| UTR Pro Florida Women | 01/03 14:30 | - | 주, 아미 v Mertena, Rebeka Margareta | 6-0,4-6,7-6 | |
| UTR Pro Florida Women | 01/01 21:00 | - | Emmie Moore v Mertena, Rebeka Margareta | 6-7,0-6 | |
| ITF W25 Liepaja | 05/25 08:00 | 62 | Avdeeva, Julia v Mertena, Rebeka Margareta | 4-6,7-6,10-2 | |
| ITF W25 Liepaja | 05/24 08:00 | 62 | Mertena, Rebeka Margareta v 가일리스, 라첼 | 6-2,2-6,10-3 | |
| ITF Women Parnu | 07/26 09:15 | 26 | Mertena, Rebeka Margareta v 파울렌카, 카트야리나 | 5-7,2-6 | |
| ITF Women Parnu | 07/24 08:00 | 25 | Mertena, Rebeka Margareta v 고를라츠, 발레리아 | 6-3,6-1 | |
| Sharm El Sheikh, Singles W-WITF-EGY-09A | 04/13 10:30 | 25 | Korashvili, Oleksandra v Mertena, Rebeka Margareta | 6-2,6-2 | |
| Sharm El Sheikh, Singles W-WITF-EGY-09A | 04/06 08:00 | 25 | Mertena, Rebeka Margareta v Salas, Emmanuelle | 2-6,3-6 |