Tamara Kostic
2023
| J300Roehampton | 2R | |
| Roland Garros Junior | 2R | |
| J300Charleroi-Marcinelle | [16] | 3R |
| J500Offenbach | [16] | 2R |
| J300Beaulieu-Sur-Mer | Semi | |
| J300Plovdiv | [7] | Quarter |
| J500Cairo | [11] | Quarter |
| J300Barranquilla | [4] | 2R |
| J300Salinas | [5] | 2R |
| J300Sanjose | [5] | Quarter |
| J200Bratislava | [3] | Semi |
2022
| J2Szekesfehervar | [5] | Final |
| J1Sanxenxo | 2R | |
| J1Pancevo | [4] | 2R |
| J1Prague | [7] | 3R |
| J1Bytom | [6] | Semi |
| J1Nottingham | 2R | |
| J1Charleroi-Marcinelle | [16] | 2R |
| J2Stpoelten | [7] | 2R |
| Jaoffenbach | Quarter | |
| J1Beaulieu-Sur-Mer | 2R | |
| J1Plovdiv | 2R | |
| J2Santodomingo-2 | Quarter | |
| J2Santodomingo | 2R | |
| J3Almetievsk | [2] | Quarter |
| J2Oberhaching | Semi |
2021
| J2Oberpullendorf | 1R | |
| J3Megrine | Quarter | |
| J5Sfax | 1R | |
| J4Sousse | Win | |
| J5Nabeul | 2R | |
| J5Tallinn | 2R | |
| J5Antalya | 1R | |
| J4Antalya | 1R | |
| J4Belgrade | 1R |
Nation
AUT
World Ranking
WTA Ranking　920th
Year-end Junior World Ranking
- Year-end 2023 88th
- Year-end 2022 79th
- Year-end 2021 159th
- Year-end 2020 1093th
- Year-end 2019 1879th
Rival
Francesca Pace (1-2)
Teodora Kostovic (0-2)
Kaitlin Quevedo (0-2)
Arina Bulatova (1-1)
Nikola Daubnerova (2-0)
Match Details
2023 J300Roehampton
| W | 1R | Martina Genis Salas | 6-3 6-2 |
| L | 2R | Tereza Valentova | 3-6 3-6 |
2023 Roland Garros Junior
| W | 1R | Alexia Harmon | 7-6 3-6 7-5 |
| L | 2R | Teodora Kostovic | 1-6 3-6 |
2023 J300Charleroi-Marcinelle
| W | 2R | Yujin Kim | 6-0 6-3 |
| L | 3R | Mayu Crossley | 6-3 6-7 0-6 |
2023 J500Offenbach
| W | 1R | Alisa Oktiabreva | 6-4 6-7 6-0 |
| L | 2R | Francesca Pace | 6-3 6-7 6-7 |
2023 J300Beaulieu-Sur-Mer
| W | 1R | Greta Greco Lucchina | 3-6 6-4 7-5 |
| W | 2R | Nikola Daubnerova | 6-3 4-6 6-3 |
| W | QF | Lucie Pawlak | 6-2 6-2 |
| L | SF | Francesca Pace | 6-7 2-6 |
2023 J300Plovdiv
| W | 1R | Francesca Pace | 6-3 4-6 6-1 |
| W | 2R | Arina Bulatova | 6-3 6-4 |
| L | QF | Teodora Kostovic | 0-6 5-7 |
2023 J500Cairo
| W | 1R | Toffee Ghorab | 6-1 6-1 |
| W | 2R | Arina Varaksina | 6-1 6-4 |
| W | 3R | Gloriana Nahum | 4-6 6-4 6-2 |
| L | QF | Federica Urgesi | 0-6 2-6 |
2023 J300Barranquilla
| L | 2R | Kate Fakih | 6-7 6-7 |
2023 J300Salinas
| W | 1R | Taylor Goetz | 7-6 6-1 |
| L | 2R | Mika Buchnik | 1-6 1-6 |
2023 J300Sanjose
| W | 1R | Sage Loudon | 5-7 6-0 6-2 |
| W | 2R | Piper Charney | 6-3 3-6 6-4 |
| L | QF | Kaitlin Quevedo | 6-2 6-7 1-6 |
2023 J200Bratislava
| W | 1R | Katrin Pavkova | 6-0 6-3 |
| W | 2R | Amy Sucha | 6-0 6-1 |
| W | QF | Barbora Michalkova | 7-5 6-0 |
| L | SF | Nikola Bartunkova | 2-6 1-6 |
2022 J2Szekesfehervar
| W | 1R | Britt Du Pree | 6-7 6-0 6-2 |
| W | 2R | Sofiia Zhylchuk | 6-1 6-3 |
| W | QF | Lucie Urbanova | 2-6 7-6 6-3 |
| W | SF | Elizara Yaneva | 6-2 6-2 |
| L | F | Mara Gae | 6-4 5-7 2-6 |
2022 J1Sanxenxo
| W | 1R | Nikola Daubnerova | 6-4 7-5 |
| L | 2R | Arina Bulatova | 3-6 5-7 |
2022 J1Pancevo
| W | 1R | Marianthi Christoforidou | 6-4 6-4 |
| L | 2R | Laura Samson | 5-7 6-3 4-6 |
2022 J1Prague
| W | 2R | Tereza Polakova | 6-1 6-3 |
| L | 3R | Alena Kovackova | 1-6 4-6 |
2022 J1Bytom
| W | 2R | Zuzanna Pawlikowska | 6-3 6-2 |
| W | 3R | Anna Sedysheva | 6-1 6-2 |
| W | QF | Kristyna Tomajkova | 6-3 6-3 |
| L | SF | Yelyzaveta Kotliar | 6-7 1-6 |
2022 J1Nottingham
| W | 1R | Hannah Smith | 6-3 7-6 |
| L | 2R | Lucia Peyre | 4-6 6-7 |
2022 J1Charleroi-Marcinelle
| L | 2R | Sandugash Kenzhibayeva | 3-6 1-6 |
2022 J2Stpoelten
| W | 1R | Kristyna Hranacova | 5-7 6-2 6-0 |
| L | 2R | Ellie Daniels | 4-6 2-6 |
2022 Jaoffenbach
| W | 1R | Amelie Van Impe | 6-3 3-6 7-6 |
| W | 2R | Eva Bennemann | 6-0 6-3 |
| W | 3R | Kristyna Tomajkova | 6-4 6-2 |
| L | QF | Celine Naef | 4-6 6-7 |
2022 J1Beaulieu-Sur-Mer
| W | 1R | Juliette Bovy | 6-3 6-3 |
| L | 2R | Ela Nala Milic | 2-6 6-7 |
2022 J1Plovdiv
| W | 1R | Ekaterina Khayrutdinova | 6-4 6-2 |
| L | 2R | Elizara Yaneva | 7-5 3-6 5-7 |
2022 J2Santodomingo-2
| W | 1R | Mao Mushika | 6-3 7-6 |
| W | 2R | Ria Bhakta | 6-1 6-2 |
| L | QF | Kaitlin Quevedo | 6-7 4-6 |
2022 J2Santodomingo
| W | 1R | Sophie Llewellyn | 6-1 7-6 |
| L | 2R | Ella Mcdonald | 6-7 6-7 |
2022 J3Almetievsk
| W | 1R | Milana Safiullina | 7-6 6-2 |
| W | 2R | Darya Zykova | 6-4 3-6 6-4 |
| L | QF | Alexandra Shubladze | 0-6 2-6 |
2022 J2Oberhaching
| W | 1R | Tessa Johanna Brockmann | 6-2 6-0 |
| W | 2R | Panna Bartha | 7-5 6-4 |
| W | QF | Anastasiia Grechkina | 2-6 6-3 6-2 |
| L | SF | Aysegul Mert | 4-6 6-2 4-6 |
2021 J2Oberpullendorf
| L | 1R | Anastasiia Gureva | 1-6 2-6 |
2021 J3Megrine
| W | 1R | Romane Longueville | 6-4 6-1 |
| W | 2R | Mariana Campino | 6-1 7-5 |
| L | QF | Nina Vargova | 1-4 44-5 |
2021 J5Sfax
| L | 1R | Eda Arli | 3-6 6-3 4-6 |
2021 J4Sousse
| W | 1R | Amal Gati | 6-2 7-6 |
| W | 2R | Aya El Aouni | 7-6 6-3 |
| W | QF | Leyla Nilufer Elmas | 6-1 7-6 |
| W | SF | Feryel Ben Hassen | 6-3 6-1 - - - |
| W | F | Natacha Schou | 6-4 7-6 |
2021 J5Nabeul
| W | 1R | Ghalia Guizani | 6-1 7-5 |
| L | 2R | Imogen Haddad | 6-3 1-6 3-6 |
2021 J5Tallinn
| W | 1R | Desire Parn | 6-0 6-4 |
| L | 2R | Nora Knezevic | 6-2 4-6 4-6 |
2021 J5Antalya
| L | 1R | Aysegul Mert | 3-6 6-7 |
2021 J4Antalya
| L | 1R | Ece Gencer | 6-2 4-6 5-7 |
2021 J4Belgrade
| L | 1R | Mia Ristic | 4-6 5-7 |
Junior Tennis Database is a site that summarizes the results of ITF junior tennis tournaments.
Number of registered tournaments: 9168, Number of registered players: 5,582, Number of registered results: 289,147