| Czech TT Star Series | 2020/09/25 10:45 | Jakub Seibert v Adrian Wiecek | L | 3-1 |
| Czech TT Star Series | 2020/09/25 08:15 | Petr Husnik v Adrian Wiecek | L | 3-2 |
| Czech TT Star Series | 2020/09/25 06:35 | Marco Rech Daldosso v Adrian Wiecek | L | 3-2 |
| Czech TT Star Series | 2020/09/24 13:45 | Adrian Wiecek v David Reitspies | L | 2-3 |
| Czech TT Star Series | 2020/09/24 11:45 | Adrian Wiecek v Tomas Konecny | L | 0-3 |
| Czech TT Star Series | 2020/09/24 09:15 | Adrian Wiecek v Alessandro Baciocchi | W | 3-1 |
| Czech TT Star Series | 2020/09/24 07:45 | Tomas Tregler v Adrian Wiecek | L | 3-0 |
| Czech TT Star Series | 2020/09/11 11:45 | Adrian Wiecek v David Reitspies | L | 0-3 |
| 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 |