| Czech TT Star Series | 2020/08/28 10:15 | Dmitrij Prokopcov v Antoni Witkowski | L | 3-1 |
| Czech TT Star Series | 2020/08/28 08:45 | Tomas Martinko v Antoni Witkowski | L | 3-2 |
| Czech TT Star Series | 2020/08/28 07:10 | Antoni Witkowski v Miroslav Horejsi | L | 1-3 |
| Czech TT Star Series | 2020/08/27 13:15 | Antoni Witkowski v Tomas Konecny | L | 1-3 |
| Czech TT Star Series | 2020/08/27 11:45 | Jiri Vrablik v Antoni Witkowski | L | 3-2 |
| Czech TT Star Series | 2020/08/27 09:45 | Martin Olejnik v Antoni Witkowski | W | 1-3 |
| Czech TT Star Series | 2020/08/27 07:10 | Jakub Folwarski v Antoni Witkowski | W | 2-3 |
| Polish Grand Prix | 2019/11/23 12:57 | Marcin Kusinski v Antoni Witkowski | L | 3-2 |
| TT Star Series | 2021/01/08 12:15 | Tomas Konecny v Adrian Wiecek | L | 3-1 |
| TT Star Series | 2021/01/08 10:45 | David Reitspies v Adrian Wiecek | L | 3-0 |
| TT Star Series | 2021/01/08 08:45 | Michal Bankosz v Adrian Wiecek | L | 3-1 |
| TT Star Series | 2021/01/07 14:15 | Hampus Soderlund v Adrian Wiecek | L | 3-1 |
| TT Star Series | 2021/01/07 11:45 | Petr Husnik v Adrian Wiecek | W | 2-3 |
| TT Star Series | 2021/01/07 10:15 | Tomas Koldas v Adrian Wiecek | L | 3-2 |
| TT Star Series | 2021/01/07 07:00 | Pawel Grela v Adrian Wiecek | W | 1-3 |
| Czech TT Star Series | 2020/09/25 10:45 | Jakub Seibert v Adrian Wiecek | L | 3-1 |