Sofia Costoulas
Nation
BEL
Age
20 years old (born in 2005)
World Ranking
WTA Ranking　260th
Year-end Junior World Ranking
- Year-end 2022 2th
- Year-end 2021 20th
- Year-end 2020 25th
- Year-end 2019 71th
Match Details
2022 Us Open Junior
| W | 1R | Lucciana Perez Alarcon | 6-2 6-0 |
| W | 2R | Valerie Glozman | 3-6 6-2 6-2 |
| L | 3R | Mirra Andreeva | 7-5 4-6 1-6 |
2022 Roland Garros Junior
| L | 1R | Dominika Salkova | 7-6 1-6 3-6 |
2022 Australian Open Junior
| W | 1R | Aruzhan Sagandikova | 6-1 6-2 |
| W | 2R | Meshkatolzahra Safi | 6-0 6-2 |
| W | 3R | Celine Naef | 7-6 7-6 |
| W | QF | Diana Shnaider | 6-3 5-7 6-4 |
| W | SF | Charlotte Kempenaers-Pocz | 6-4 6-1 |
| L | F | Petra Marcinko | 5-7 1-6 |
2021 Us Open Junior
| W | 1R | Sabina Zeynalova | 5-4 |
| W | 2R | Madison Sieg | 6-3 3-6 6-3 |
| L | 3R | Sebastianna Scilipoti | 6-7 6-7 |
2021 Wimbledon Junior
| W | 1R | Erika Matsuda | 5-7 6-2 6-0 |
| L | 2R | Alicia Dudeney | 6-3 1-6 6-7 |
2021 Roland Garros Junior
| W | 1R | Julia Middendorf | 6-2 7-5 |
| L | 2R | Michaela Laki | 6-4 2-6 6-7 |
2020 Roland Garros Junior
| L | 1R | Polina Kudermetova | 6-3 2-6 2-6 |
2020 Australian Open Junior
| L | 1R | Robin Montgomery | 1-6 0-6 |
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