Petra Marcinko
2022
| Roland Garros Junior | [1] | 3R |
| Australian Open Junior | [1] | Win |
2021
| Us Open Junior | Quarter | |
| Jamilan-2 | [5] | Quarter |
| Wimbledon Junior | 2R | |
| Thejuniorchampionships | 2R | |
| J1Roehampton | 1R | |
| Roland Garros Junior | 1R | |
| J1Plovdiv | [3] | 2R |
| Jacriciuma | [5] | Quarter |
| J1Portoalegre | [7] | Quarter |
| J1Lambare | [8] | Win |
| J1Salinas | [8] | Semi |
Nation
CRO
Age
19 years old (born in 2005)
World Ranking
WTA Ranking　131th
Year-end Junior World Ranking
- Year-end 2022 18th
- Year-end 2021 1th
- Year-end 2020 102th
- Year-end 2019 202th
Rival
Bianca Behulova (2-1)
Kayla Cross (2-0)
Alexis Blokhina (2-0)
Natalia Szabanin (0-2)
Clervie Ngounoue (0-2)
Match Details
2022 Roland Garros Junior
| W | 1R | Kayla Cross | 6-1 6-4 |
| W | 2R | Angella Okutoyi | 6-2 6-4 |
| L | 3R | Nikola Bartunkova | 6-7 5-7 |
2022 Australian Open Junior
| W | 1R | Alexis Blokhina | 3-6 6-3 6-3 |
| W | 2R | Kayla Cross | 6-2 6-2 |
| W | 3R | Denislava Glushkova | 6-3 6-1 |
| W | QF | Lola Radivojevic | 7-5 6-2 |
| W | SF | Liv Hovde | 6-4 4-6 6-4 |
| W | F | Sofia Costoulas | 7-5 6-1 |
2021 Us Open Junior
| W | 1R | Ya Yi Yang | 6-4 7-6 |
| W | 2R | Ashlyn Krueger | 3-6 6-4 6-3 |
| W | 3R | Alexis Blokhina | 7-5 6-1 |
| L | QF | Kristina Dmitruk | 3-6 6-3 3-6 |
2021 Jamilan-2
| W | 1R | Carolina Gomez | 6-3 6-2 |
| W | 2R | Anca Todoni | 6-4 7-5 |
| W | 3R | Anastasiia Gureva | 7-6 6-1 |
| L | QF | Clervie Ngounoue | 6-7 7-6 3-6 |
2021 Wimbledon Junior
| W | 1R | Johanne Christine Svendsen | 6-3 6-3 |
| L | 2R | Linda Fruhvirtova | 2-6 1-6 |
2021 Thejuniorchampionships
| W | 1R | Johanne Christine Svendsen | 6-3 6-3 |
| L | 2R | Linda Fruhvirtova | 2-6 1-6 |
2021 J1Roehampton
| L | 1R | Barbora Palicova | 2-6 1-6 |
2021 Roland Garros Junior
| L | 1R | Clervie Ngounoue | 4-6 4-6 |
2021 J1Plovdiv
| W | 1R | Anca Todoni | 6-2 5-7 6-0 |
| L | 2R | Lucie Havlickova | 4-6 2-6 |
2021 Jacriciuma
| W | 1R | Clarine Lerby | 6-2 6-4 |
| W | 2R | Tijana Sretenovic | 7-6 6-3 |
| L | QF | Bianca Behulova | 6-7 6-3 6-10 |
2021 J1Portoalegre
| W | 1R | Maria Olivia Castedo | 6-3 6-2 |
| W | 2R | Tijana Sretenovic | 6-1 6-3 |
| L | QF | Natalia Szabanin | 2-5 |
2021 J1Lambare
| W | 1R | Valencia Xu | 6-3 6-1 |
| W | 2R | Lucciana Perez Alarcon | 6-2 6-4 |
| W | QF | Laia Petretic | 6-4 7-5 |
| W | SF | Bianca Behulova | 6-2 3-6 6-4 |
| W | F | Solana Sierra | 6-4 7-5 |
2021 J1Salinas
| W | 1R | Bianca Behulova | 7-6 6-4 |
| W | 2R | Mariana Manyoma Velasquez | 6-2 6-1 |
| W | QF | Julia Garcia | 7-5 6-3 |
| L | SF | Natalia Szabanin | 4-6 2-6 |
Junior Tennis Database is a site that summarizes the results of ITF junior tennis tournaments.
Number of registered tournaments: 9232, Number of registered players: 5,739, Number of registered results: 303,630