Roni Mikael Hietaranta
2019
| J2 CAIRO-2 | 1R | |
| J2 CAIRO | 2R | |
| JB1 KLOSTERS | 1R | |
| J2 CASTRICUM | [13] | 2R |
| J2 PLZEN | Quarter | |
| J3 TALLINN | 1R | |
| J4 ISTANBUL | [1] | 2R |
| J3 ISTANBUL-3 | [4] | Semi |
| J2 FLORENCE | 1R | |
| J1 VRSAR | 1R | |
| J3 TRNAVA | [4] | 3R |
| J4 KAARINA | [1] | Win |
| J4 PRAGUE | [4] | Quarter |
| J1 PRAGUEWEST | 2R | |
| J3 BROMMA | [8] | Quarter |
2018
Nation
FIN
Year-end Junior World Ranking
- Year-end 2019 261th
Rival
mathias musil (2-0)
Match Details
2019 J2 CAIRO-2
| L | 1R | Jeffrey Von Der Schulenburg | 2-6 1-6 |
2019 J2 CAIRO
| W | 1R | Michael Bassem Sobhy | 7-6 6-1 |
| L | 2R | Terence Atmane | 0-6 3-6 |
2019 JB1 KLOSTERS
| L | 1R | Arthur Fery | 1-6 4-6 |
2019 J2 CASTRICUM
| L | 2R | Alexander Kiefer | 3-6 6-3 4-6 |
2019 J2 PLZEN
| W | 1R | Nicolas Zanellato | 6-4 7-6 |
| W | 2R | Leonardo Malgaroli | 6-7 6-1 4-2 |
| L | QF | Martin Krumich | 2-6 3-6 |
2019 J3 TALLINN
| L | 1R | Blu Baker | 3-6 2-6 |
2019 J4 ISTANBUL
| W | 1R | Deniz Temel | 6-1 6-2 |
| L | 2R | Togan Tokac | 6-3 5-7 0-6 |
2019 J3 ISTANBUL-3
| W | 1R | Togan Makzume | 6-1 7-5 |
| W | 2R | Aleksandr Kalinin | 6-2 6-1 |
| W | QF | Emir Sendogan | 6-1 7-6 |
| L | SF | Lui Maxted | 4-6 7-5 0-6 |
2019 J2 FLORENCE
| L | 1R | Biagio Gramaticopolo | 4-6 1-6 |
2019 J1 VRSAR
| L | 1R | Luciano Darderi | 2-6 2-6 |
2019 J3 TRNAVA
| W | 2R | Mathias Musil | 6-1 6-4 |
| L | 3R | Kristijan Juhas | 6-7 6-3 6-7 |
2019 J4 KAARINA
| W | 1R | Michael Minasyan | 6-0 6-2 |
| W | 2R | Joshua Dous Karpenschif | 3-6 7-5 6-3 |
| W | QF | Matthew William Donald | 6-7 6-4 6-0 |
| W | SF | Linus Carlsson Halldin | 6-4 6-3 |
| W | F | Ammar Elamin | 6-3 7-5 |
2019 J4 PRAGUE
| W | 1R | Mathias Musil | 6-3 6-3 |
| W | 2R | Christopher Frantzen | 6-2 6-0 |
| L | QF | Ivan Noel Hornung | 4-6 4-6 |
2019 J1 PRAGUEWEST
| W | 1R | Adam Jurajda | 6-0 6-1 |
| L | 2R | Alibek Kachmazov | 6-4 3-6 6-7 |
2019 J3 BROMMA
| W | 1R | Finn Murgett | 7-5 5-7 6-2 |
| W | 2R | Giovanni Mpetshi Perricard | 6-4 7-6 |
| L | QF | Harry Wendelken | 5-7 4-6 |
2018 J3 RAMATHASHARON
| L | 1R | Benedikt Emesz | 6-2 3-6 1-6 |
2018 J2 KIRYATSHMONA
| L | 1R | Elmer Moeller | 4-6 3-6 |
2018 J4 KAARINA
| W | 1R | Marat Sharipov | 6-4 6-3 |
| W | 2R | Ronan Vahtras | 6-2 6-2 |
| W | QF | Charles Barry | 7-5 1-6 6-1 |
| L | SF | Felix Gill | 5-7 4-6 |
Junior Tennis Database is a site that summarizes the results of ITF junior tennis tournaments.
Number of registered tournaments: 14549, Number of registered players: 7,577, Number of registered results: 451,713