Olaf Pieczkowski
2022
| Usopenjuniorchampionships | 2R | |
| Us Open Junior | 2R | |
| Jb1Klosters | [10] | 3R |
| Wimbledon Junior | 1R | |
| J1Roehampton | 1R | |
| Roland Garros Junior | 2R | |
| Jamilan | 1R | |
| Australian Open Junior | [8] | 2R |
| J1Traralgon | [7] | Quarter |
2021
| J2Gladbeck | [3] | Quarter |
| J3Lviv | [1] | Win |
| J4Gdansk | [1] | 1R |
| J1Bytom | 2R | |
| J2Hannover | 1R | |
| J2Ryazan | [6] | 1R |
| J1Ricany | 2R | |
| J3Istanbul | [4] | Semi |
| J2Santodomingo-2 | 1R | |
| J2Santodomingo | 1R | |
| J2Siauliai | 1R | |
| J1Svyatopetrivskevillage | 1R |
Nation
POL
Age
21 years old (born in 2004)
World Ranking
ATP Ranking　482th
Year-end Junior World Ranking
- Year-end 2022 164th
- Year-end 2021 23th
- Year-end 2020 285th
- Year-end 2019 665th
Match Details
2022 Usopenjuniorchampionships
| W | 1R | Alexander Razeghi | 6-4 6-2 |
| L | 2R | Gilles Arnaud Bailly | 3-6 6-3 1-6 |
2022 Us Open Junior
| W | 1R | Alexander Razeghi | 6-4 6-2 |
| L | 2R | Gilles Arnaud Bailly | 3-6 6-3 1-6 |
2022 Jb1Klosters
| W | 2R | Luca Pow | 6-1 6-4 |
| L | 3R | Henrique Rocha | 5-7 3-6 |
2022 Wimbledon Junior
| L | 1R | Ozan Colak | 5-7 1-6 |
2022 J1Roehampton
| L | 1R | Matej Dodig | 3-6 6-7 |
2022 Roland Garros Junior
| W | 1R | Loan Lestir | 6-2 6-2 |
| L | 2R | Jakub Mensik | 1-6 7-5 2-6 |
2022 Jamilan
| L | 1R | Peter Benjamin Privara | 1-6 6-2 1-6 |
2022 Australian Open Junior
| W | 1R | Antoine Ghibaudo | 6-3 6-4 |
| L | 2R | Yannik Rahman | 3-6 6-3 1-6 |
2022 J1Traralgon
| W | 1R | Luka Mikrut | 6-2 6-4 |
| W | 2R | Lennon Roark Jones | 6-7 6-4 6-1 |
| W | 3R | Hynek Barton | 6-3 4-6 6-2 |
| L | QF | Bruno Kuzuhara | 2-6 2-6 |
2021 J2Gladbeck
| W | 1R | Konstantin Bennemann | 6-2 6-0 |
| W | 2R | Yanaki Milev | 6-2 4-6 6-4 |
| L | QF | Gerard Campana Lee | 7-5 1-6 3-6 |
2021 J3Lviv
| W | 1R | Adam Kresina | 6-2 6-7 6-3 |
| W | 2R | Erik Tkalenko | 7-5 1-6 6-2 |
| W | QF | Branko Djuric | 6-1 6-1 |
| W | SF | Nikola Zekic | 6-2 6-3 |
| W | F | Yannik Rahman | 6-1 6-4 |
2021 J4Gdansk
| L | 1R | Patryk Stokowski | 3-6 6-7 |
2021 J1Bytom
| W | 1R | Maxim Zhukov | 7-5 6-7 6-3 |
| L | 2R | Dino Prizmic | 6-3 2-6 1-6 |
2021 J2Hannover
| L | 1R | Adam Jurajda | 3-6 6-3 0-6 |
2021 J2Ryazan
| L | 1R | Ivan Burnashov | 4-6 5-7 |
2021 J1Ricany
| W | 1R | Maj Premzl | 7-6 6-1 |
| L | 2R | Elmer Moeller | 5-7 1-6 |
2021 J3Istanbul
| W | 1R | Jakub Nicod | 4-6 6-3 6-4 |
| W | 2R | Birtan Duran | 6-4 6-3 |
| W | QF | Berk Bugarikj | 6-2 6-4 |
| L | SF | Alexander Blockx | 5-7 5-7 |
2021 J2Santodomingo-2
| L | 1R | Orel Kimhi | 6-4 3-6 5-7 |
2021 J2Santodomingo
| L | 1R | Johan Alexander Rodriguez Rodriguez | 3-6 4-6 |
2021 J2Siauliai
| L | 1R | Adam Jurajda | 2-6 3-6 |
2021 J1Svyatopetrivskevillage
| L | 1R | Constantinos Koshis | 4-6 4-6 |
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