Johan Oscar Lien
2025
2024
| J100Loughborough-3 | 1R | |
| J200Oslo | 1R | |
| J100Stavanger-2 | Quarter | |
| J60Pszczyna | [7] | Semi |
| J100Stavanger | [14] | 3R |
| J30Gothenburg | [1] | Win |
| J60Estepona | [4] | Quarter |
| J100Liepaja | 2R | |
| J100Krakow | Semi | |
| J60Schifflange | [6] | 1R |
| J60Jonkoping | Semi | |
| J60Aizkraukle | Quarter | |
| J30Oslo | [2] | Semi |
| J60Gjovik | Quarter | |
| J60Oslo | 2R | |
| J60Vierumaki | Quarter | |
| J60Malmo | 2R |
2023
| J30Stavanger | [4] | Quarter |
| J60Rungstedkyst | 2R | |
| J30Nastola-2 | [5] | Quarter |
| J30Frederiksberg | [6] | 2R |
| J30Sandefjord | [5] | 1R |
| J30Siauliai | Semi | |
| J30Hillerod | 1R | |
| J60Naas | 2R |
Nation
NOR
Generation
Born in 2007 (17-18 years old)
World Ranking
Junior World Ranking 218th
Year-end Junior World Ranking
- Year-end 2024 540th
- Year-end 2023 1319th
- Year-end 2022 3558th
Rival
Arturs Zagars (1-2)
Victor Ryden (1-1)
Ferran Redza (0-2)
Michael Savano (1-1)
Rasmus Hembo Mathiasen (1-1)
Match Details
2025 J200Aldershot
| L | 1R | Ferran Redza | 4-6 6-2 5-7 |
2025 J200Florence
| L | 1R | Jakub Smejcky | 2-6 6-7 |
2025 J300Indianwells
| L | 1R | Agassi Rusher | 6-2 4-6 3-6 |
2025 J200Siauliai
| L | 1R | Romain Andres | 4-6 7-5 1-6 |
2025 J200Oberhaching
| W | 1R | Eric Dylan Mueller | 6-4 6-3 |
| L | 2R | Thomas Gunzinger | 4-6 4-6 |
2025 J100Bromma
| W | 1R | William Kaltenecker | 6-0 6-0 |
| W | 2R | Filip Hesser | 6-1 6-4 |
| W | QF | Oliver Majdandzic | 6-1 7-5 |
| W | SF | Martin Doskocil | 6-3 6-2 |
| W | F | Victor Ryden | 3-6 7-6 6-3 |
2024 J100Loughborough-3
| L | 1R | Ferran Redza | 6-4 1-6 2-6 |
2024 J200Oslo
| L | 1R | Kerem Yilmaz | 4-6 4-6 |
2024 J100Stavanger-2
| W | 1R | Arturs Zagars | 6-3 6-2 |
| W | 2R | Olav Berg | 7-5 6-2 |
| L | QF | Tudor Batin | 4-6 7-6 1-6 |
2024 J60Pszczyna
| W | 1R | Saul Pacheco Benasayag | 6-1 6-0 |
| W | 2R | Tomas Krejci | 6-1 6-1 |
| W | QF | Jan Wygona | 6-7 6-2 6-3 |
| L | SF | Michael Savano | 6-3 5-7 3-6 |
2024 J100Stavanger
| W | 2R | Paul Hjorteland | 6-3 6-1 |
| L | 3R | Thijs Boogaard | 3-6 2-6 |
2024 J30Gothenburg
| W | 1R | Oliver Wei Liu | 6-2 6-1 |
| W | 2R | Gabriel Maciel Araujo Pyndt | 6-1 6-1 |
| W | QF | Love Nyqvist | 6-4 6-4 |
| W | SF | Daniel Margoulis | 6-0 6-2 |
| W | F | Ludwig Hermann | 6-1 6-4 |
2024 J60Estepona
| W | 1R | Joel Hansson | 7-5 6-3 |
| W | 2R | Sebastian Anthony Vlahos | 7-5 6-2 |
| L | QF | Maxi Carrascosa Diaz | 4-6 6-4 3-6 |
2024 J100Liepaja
| W | 1R | Jan Wygona | 6-1 6-3 |
| L | 2R | Arturs Zagars | 5-7 4-6 |
2024 J100Krakow
| W | 1R | Filip Kosinski | 6-3 6-2 |
| W | 2R | Jakub Vrtilka | 7-5 6-0 |
| W | QF | Jan Chlodnicki | 1-6 6-2 6-4 |
| L | SF | Damir Zhalgasbay | 4-6 1-6 |
2024 J60Schifflange
| L | 1R | Arian Hasas | 1-6 3-6 |
2024 J60Jonkoping
| W | 1R | William Kjellberg | 6-1 7-5 |
| W | 2R | Sebastian Gampert | 4-6 6-2 6-2 |
| W | QF | Rasmus Hembo Mathiasen | 6-2 6-0 |
| L | SF | Thilo Behrmann | 4-6 2-6 |
2024 J60Aizkraukle
| W | 1R | Maksims Kazancevs | 6-0 6-0 |
| W | 2R | Michael Savano | 6-2 6-1 |
| L | QF | Dmytro Vterkovskiy | 4-6 4-6 |
2024 J30Oslo
| W | 1R | Kelvin Walltin | 6-1 6-4 |
| W | 2R | Petter Christopher Berg Hagen | 6-1 6-0 |
| W | QF | Jan Sykora | 6-3 6-2 |
| L | SF | Sebastian Eie | 3-6 2-6 |
2024 J60Gjovik
| W | 1R | Andreas Philip Cort Maleeva Hansen | 6-2 6-0 |
| W | 2R | Lawrie Wilkin | 6-3 6-0 |
| L | QF | Victor Ryden | 4-6 3-6 |
2024 J60Oslo
| W | 1R | Lucas Christmas Moeller | 2-6 6-4 7-5 |
| L | 2R | Arturs Zagars | 3-6 2-6 |
2024 J60Vierumaki
| W | 1R | Aleksandrs Sotikovs | 6-0 6-3 |
| W | 2R | Georg Strasch | 4-6 6-1 6-4 |
| L | QF | Enrico Franchi | 6-3 3-6 1-6 |
2024 J60Malmo
| W | 1R | Linus Andersson | 6-4 7-6 |
| L | 2R | Rasmus Hembo Mathiasen | 5-7 3-6 |
2023 J30Stavanger
| W | 2R | Christoffer Topp-Parving | 3-6 6-3 6-2 |
| W | 3R | Matthew Mclain | 6-0 6-1 |
| L | QF | Andreas Ursin Nygaard | 6-3 4-6 6-7 |
2023 J60Rungstedkyst
| W | 1R | Mads Bruhn Aaby | 6-3 6-3 |
| L | 2R | Melvin Kumar | 2-6 2-6 |
2023 J30Nastola-2
| W | 1R | Kaspar Lusti | 6-2 6-1 |
| W | 2R | Aarni Sinkkonen | 7-5 6-2 |
| L | QF | Denis Maijorov | 3-6 1-6 |
2023 J30Frederiksberg
| W | 1R | Petter Lindquist | 7-5 6-1 |
| L | 2R | August Brostroem Poulsen | 4-6 6-7 |
2023 J30Sandefjord
| L | 1R | Jan Sykora | 4-6 2-6 |
2023 J30Siauliai
| W | 1R | Przemyslaw Nikolajuk | 6-4 7-5 |
| W | 2R | Julius Aleksandrovas | 6-4 7-5 |
| W | QF | Oleksandr Kolesnychenko | 6-3 6-4 |
| L | SF | Jakub Hrynkiewicz | 3-6 5-7 |
2023 J30Hillerod
| L | 1R | Amir Albeg | 6-3 1-6 5-7 |
2023 J60Naas
| W | 1R | Geoffrey Daniels | 6-3 6-2 |
| L | 2R | Patrick Marsh | 4-6 2-6 |
Junior Tennis Database is a site that summarizes the results of ITF junior tennis tournaments.
Number of registered tournaments: 5778, Number of registered players: 4,878, Number of registered results: 222,253