Marta Kostyuk
2017
| Us Open Junior | [2] | 2R |
| Wimbledon Junior | [5] | 2R |
| Roland Garros Junior | [4] | 2R |
| Australian Open Junior | [11] | Win |
Nation
UKR
Age
22 years old (born in 2002)
World Ranking
WTA Ranking　25th
Match Details
2017 Us Open Junior
| W | 1R | Sada Nahimana | 4-6 6-0 6-0 |
| L | 2R | Elysia Bolton | 6-7 2-6 |
2017 Wimbledon Junior
| W | 1R | Kaja Juvan | 7-5 6-3 |
| L | 2R | Maja Chwalinska | 1-6 4-6 |
2017 Roland Garros Junior
| W | 1R | Mylene Halemai | 6-3 6-2 |
| L | 2R | Amina Anshba | 6-3 6-7 3-6 |
2017 Australian Open Junior
| W | 1R | Mahak Jain | 6-3 6-3 |
| W | 2R | Naho Sato | 6-1 2-6 6-2 |
| W | 3R | Jodie Anna Burrage | 6-7 6-1 6-4 |
| W | QF | En Shuo Liang | 6-3 6-1 |
| W | SF | Elena Rybakina | 6-1 7-5 |
| W | F | Rebeka Masarova | 7-5 1-6 6-4 |
Junior Tennis Database is a site that summarizes the results of ITF junior tennis tournaments.
Number of registered tournaments: 5774, Number of registered players: 3,011, Number of registered results: 222,093