Jonas Kucera
2024
| J200Almaty | 2R | |
| J200Piestany | 2R | |
| J100Loughborough-2 | [5] | 2R |
| J100Loughborough | [1] | Quarter |
| J100Trnava | [1] | 1R |
| J200Kolkata | 1R | |
| J200Newdelhi | 1R |
2023
| J100Loughborough | [3] | Semi |
| J100Leszno | [7] | 2R |
| J100Prague-2 | [5] | 1R |
| J60Kigali | [1] | Win |
| J100Maaseik | [2] | Final |
| J60Hillegom | [1] | 2R |
| J100Verbier | [6] | Quarter |
| J60Gdansk | [2] | Semi |
| J100Tallinn | [7] | Quarter |
| J200Piestany | 2R | |
| J60Gjovik | [1] | Final |
| J60Oslo | [3] | Final |
| J60Fujairah | [2] | Quarter |
Nation
CZE
World Ranking
ATP Ranking　1326th
Year-end Junior World Ranking
- Year-end 2024 718th
- Year-end 2023 300th
- Year-end 2022 469th
- Year-end 2021 1464th
Match Details
2024 J200Almaty
| W | 1R | Artem Sidorov | 6-3 7-6 |
| L | 2R | Kerem Yilmaz | 0-6 2-6 |
2024 J200Piestany
| W | 1R | Matej Markovic | 6-3 6-0 |
| L | 2R | Alessandro Battiston | 6-7 4-6 |
2024 J100Loughborough-2
| W | 1R | Dylan Davies | 6-3 6-4 |
| L | 2R | Octave Caillat | 2-6 4-6 |
2024 J100Loughborough
| W | 1R | Alexander Winder | 6-3 6-2 |
| W | 2R | Victor Kimpel | 6-0 6-3 |
| L | QF | Mark Ceban | 6-4 6-7 1-6 |
2024 J100Trnava
| L | 1R | Sergej Zivkovic | 2-6 0-6 |
2024 J200Kolkata
| L | 1R | Rethin Pranav Senthil Kumar | 6-2 3-6 5-7 |
2024 J200Newdelhi
| L | 1R | Nikita Bilozertsev | 4-6 3-6 |
2023 J100Loughborough
| W | 1R | Ferdinand Livet Novkirichka | 6-4 7-5 |
| W | 2R | Finbar Mcgarvey | 4-6 6-3 6-3 |
| W | QF | Maximilian Carrier | 6-4 6-3 |
| L | SF | Bill Chan | 4-6 3-6 |
2023 J100Leszno
| W | 1R | Filip Kosinski | 6-4 6-2 |
| L | 2R | Fredrik Krogh Solheim | - - - |
2023 J100Prague-2
| L | 1R | Makar Krivoshchekov | 1-6 3-6 |
2023 J60Kigali
| W | 1R | Junior Hakizumwami | 6-1 6-0 |
| W | 2R | Shabad Singh | 6-1 6-1 |
| W | QF | Ruinclife Baraka Ominde | 6-0 6-2 |
| W | SF | Arnav Yadav | 6-0 6-2 |
| W | F | Alexey Shibaev | 6-3 4-6 6-4 |
2023 J100Maaseik
| W | 2R | Kacper Krolikowski | 6-2 6-4 |
| W | 3R | Oscar Rashed | 6-2 4-6 6-1 |
| W | QF | Luke Hooper | 7-5 6-1 |
| W | SF | Bill Chan | 6-0 6-3 |
| L | F | Tobia Costanzo Baragiola Mordini | 5-7 1-6 |
2023 J60Hillegom
| L | 2R | Thomas Van Den Dooren | 6-2 4-6 2-6 |
2023 J100Verbier
| W | 1R | Luc Wieland | 7-5 6-2 |
| W | 2R | Lorenzo Beraldo | 7-5 6-3 |
| L | QF | Matthias Uwe Kask | 6-7 2-6 |
2023 J60Gdansk
| W | 1R | Jakub Krawczyk | 6-4 4-0 |
| W | 2R | Tom Sickenberger | 7-5 6-3 |
| W | QF | Leon Zaorski | 6-0 6-3 |
| L | SF | Izan Almazan Valiente | 4-6 2-6 |
2023 J100Tallinn
| W | 1R | Ricards Spaks | 6-0 6-2 |
| W | 2R | Filip Soderqvist | 6-1 6-2 |
| L | QF | Alaa Trifi | 4-6 1-6 |
2023 J200Piestany
| W | 1R | Patrick Jozwicki | 6-4 4-6 7-6 |
| L | 2R | Iannis Miletich | 3-6 6-2 1-6 |
2023 J60Gjovik
| W | 1R | Daniel Margoulis | 3-6 6-3 7-6 |
| W | 2R | Mats Pottbecker | 6-0 7-5 |
| W | QF | Svit Suljic | 6-2 4-6 6-3 |
| W | SF | Sturle Hoff Skigelstrand | 6-2 6-0 |
| L | F | Nico Hipfl | 5-7 2-6 |
2023 J60Oslo
| W | 1R | Artjoms Afanasjevs | 6-0 6-1 |
| W | 2R | Andriy Poritskyy | 6-2 6-1 |
| W | QF | David Cristian Carteputreda | 6-2 6-0 |
| W | SF | Filip Stidell | 6-4 6-3 |
| L | F | Ludvig Hede | 1-6 6-1 1-6 |
2023 J60Fujairah
| W | 1R | Anthony Moukarzel | 6-3 6-3 |
| W | 2R | Vatsal Manikantan | 7-5 6-0 |
| L | QF | Bryan Hernandez Cortes | 7-6 5-7 6-7 |
Junior Tennis Database is a site that summarizes the results of ITF junior tennis tournaments.
Number of registered tournaments: 9524, Number of registered players: 5,032, Number of registered results: 218,569