| ITF Women Santa Margherita | 03/28 11:20 | 25 | Valentini Grammatikopoulou v Kathinka Von Deichmann | 5-7,2-6 | |
| ITF Women Santa Margherita | 03/22 08:30 | 25 | [377] Marta Paigina v Valentini Grammatikopoulou [205] | 7-6,6-1 | |
| ITF Women Moscow | 02/23 09:55 | 26 | Alina Silich v Valentini Grammatikopoulou | 6-2,6-4 | |
| ITF Women Moscow | 02/21 14:45 | 25 | Valeriya Pogrebnyak v Valentini Grammatikopoulou | 6-7,4-6 | |
| ITF Women Altenkirchen | 02/14 11:00 | 25 | Laura-Ioana Andrei v Valentini Grammatikopoulou | 6-3,3-6,6-1 | |
| Australian Open 2017 Women Qual | 01/13 09:20 | 45 | Valentini Gram'lou v Eri Hozumi | 1-6,1-6 | |
| Australian Open 2017 Women Qual | 01/12 02:50 | 44 | Nina Stojanovic v Valentini Gram'lou | 6-3,2-6,0-6 | |
| ITF Women Hammamet | 12/11 09:00 | 29 | Valentini Grammatikopoulou v Jelena Simic | 6-1,6-3 | |
| ITF Women Hammamet | 12/10 12:30 | 28 | Valentini Grammatikopoulou v Carolina M R Alves | 7-5,6-4 | |
| ITF Women Hammamet | 12/10 08:30 | 27 | Valentini Grammatikopoulou v Dalila Spiteri | 7-6,6-2 | |
| ITF Women Hammamet | 12/09 11:15 | 26 | Valentini Grammatikopoulou v Nuria Brancaccio | 7-5,6-1 | |
| ITF Women Hammamet | 12/06 08:30 | 25 | Valentini Grammatikopoulou v Andreea Amalia Rosca | 6-1,6-4 | |
| ITF Women Valencia | 11/24 10:00 | 26 | Quirine Lemoine v Valentini Grammatikopoulou | 5-7,6-3,6-2 | |
| ITF Women Valencia | 11/24 01:33 | - | Quirine Lemoine v Valentini Gramma'poulou | 5-7,6-3,5-2 | |
| ITF Women Valencia | 11/22 15:35 | 25 | Akgul Aman'dova v Valentini Gramma'poulou | 6-1,2-6,6-7 | |
| ITF Women Zawada | 11/15 10:00 | 25 | Valentini Grammatikopoulou v Laura Schaeder | 2-6,5-7 | |
| ITF Women Minsk | 11/09 07:04 | - | Anastasia Zarytska v Valentini Gram'lou | 6-4,6-2 | |
| ITF Women Minsk | 11/08 23:00 | 26 | Anastasia Zarycka v Valentini Grammatikopoulou | 6-4,6-2 | |
| ITF Women Minsk | 11/07 23:00 | 25 | Nika Shytkouskaya v Valentini Gram'lou | 4-6,2-6 | |
| ITF Women Lagos | 10/20 22:00 | 28 | Valentini Grammatikopoulou v Conny Perrin | 3-6,1-6 | |
| ITF Women Lagos | 10/20 08:30 | - | Valentini Grammatikopoulou v Deniz Khazaniuk | 7-6,4-6,5-1 | |
| ITF Women Lagos | 10/19 22:00 | 27 | Valentini Grammatikopoulou v Deniz Khazaniuk | 7-6,4-6,6-1 | |
| ITF Women Lagos | 10/19 08:45 | - | Valentini Grammatikopoulou v Fanny Ostlund | 6-1,6-1 | |
| ITF Women Lagos | 10/18 22:00 | 26 | Valentini Grammatikopoulou v Fanny Ostlund | 6-1,6-1 | |
| ITF Women Lagos | 10/16 22:00 | 25 | Valentini Grammatikopoulou v Brenda Njuki | 6-4,7-6 | |
| ITF Women Lagos | 10/13 08:29 | - | Valentini Grammatikopoulou v Julia Terziyska | 4-6,6-7 | |
| ITF Women Lagos | 10/12 22:00 | 27 | Valentini Grammatikopoulou v Julia Terziyska | 4-6,6-7 | |
| ITF Women Lagos | 10/11 22:00 | 26 | Valentini Grammatikopoulou v Prarthana G. Thombare | 6-2,6-2 | |
| ITF Women Lagos | 10/09 22:00 | 25 | Valentini Grammatikopoulou v Kyra Shroff | 2-6,6-2,6-2 | |
| ITF Women Clermont-Ferrand | 09/29 11:00 | 26 | Manon Arcangioli v Valentini Grammatikopoulou | 6-2,6-2 |