Stadium: Court 20 Round: 25 Ground: Clay
| ITF M15 Antalya | 2021/11/03 11:20 | Pieczkowski, Olaf v 파즈, 후안 파블로 | 4-6,3-6 |
| ITF M15 Lodz | 2021/08/18 11:25 | 마레크, 웨지시에치 v Pieczkowski, Olaf | 5-7,6-4,6-1 |
| ITF M15 Gdynia | 2021/08/11 15:40 | 톨레도 바구에, 폴 v Pieczkowski, Olaf | 6-4,6-0 |
| ITF M15 Gdynia | 2021/08/10 08:00 | Kotzen, Alexander v Pieczkowski, Olaf | 2-6,6-2,8-10 |
| ITF M15 Gdynia | 2021/08/09 08:00 | Pieczkowski, Olaf v 후리온, 밀렌 | 6-1,6-7,10-4 |
| ITF M15 Gdynia | 2021/08/08 08:00 | Pieczkowski, Olaf v 랑메이저, 도미니크 | 6-2,6-1 |
| ITF M25 Wroclaw | 2021/06/28 09:30 | 카치마조브, 알리베크 v Pieczkowski, Olaf | 6-0,6-1 |
| ITF M25 Wroclaw | 2021/06/27 11:00 | Tomas Lanik v Pieczkowski, Olaf | 2-6,3-6 |
| ITF M15 Antalya | 2021/11/05 07:00 | Neumayer, Lukas v 파즈, 후안 파블로 | 2-6,6-3,0-6 |
| ITF M15 Antalya | 2021/11/04 06:30 | 프룬자, 니콜라에 v Neumayer, Lukas | 3-6,3-6 |
| ITF M15 Antalya | 2021/11/03 12:35 | Todorovic, Luka v Neumayer, Lukas | 2-6,6-7 |
| ITF M15 Antalya | 2021/10/29 07:00 | 만다, 칼린 v Neumayer, Lukas | 4-6,6-3,7-6 |
| ITF M15 Antalya | 2021/10/28 06:50 | 일란, 마르셀 v Neumayer, Lukas | 2-6,6-7 |
| ITF M15 Antalya | 2021/10/27 09:45 | Neumayer, Lukas v Nicholas David Ionel | 7-6,7-6 |
| ITF M25 Toulouse | 2021/10/22 12:45 | de Loore, Joris v Neumayer, Lukas | 6-4,6-4 |
| ITF M25 Toulouse | 2021/10/21 14:55 | Neumayer, Lukas v 에스코피어, 안토니 | 4-6,6-4,6-3 |