| Club Friendlies (Regulation Only) | 2021/08/05 14:00 | HC Kometa Brno U20 v Mountfield HK U20 | L | 4-2 |
| Club Friendlies (Regulation Only) | 2021/07/29 11:00 | Mountfield HK U20 v HC Kometa Brno U20 | W | 4-2 |
| Czech Republic Extraliga U20 | 2020/10/02 15:00 | Mountfield HK U20 v HC Kometa Brno U20 | L | 5-6 |
| Club Friendlies (Regulation Only) | 2020/08/04 15:00 | Mountfield HK U20 v HC Kometa Brno U20 | W | 8-1 |
| Czech Extraliga U20 Cup | 2019/12/03 15:00 | HC Kometa Brno U20 v Mountfield HK U20 | W | 2-5 |
| Czech Republic Extraliga U20 | 2018/03/28 16:15 | Mountfield HK U20 v HC Kometa Brno U20 | L | 2-5 |
| Czech Republic Extraliga U20 | 2018/02/22 16:00 | Mountfield HK U20 v HC Kometa Brno U20 | W | 7-1 |
| Czech Republic Extraliga U20 | 2021/12/20 14:00 | Dukla Jihlava U20 v Mountfield HK U20 | W | 1-4 |
| Czech Republic Extraliga U20 | 2021/12/19 16:00 | Slavia Praha U20 v Mountfield HK U20 | W | 2-4 |
| Czech Republic Extraliga U20 | 2021/12/03 17:00 | Pirati Chomutov U20 v Mountfield HK U20 | W | 1-6 |
| Czech Republic Extraliga U20 | 2021/11/27 11:15 | Mountfield HK U20 v HC AZ Havirov U20 | W | 4-3 |
| Czech Republic Extraliga U20 | 2021/11/26 14:00 | Mountfield HK U20 v HC Ocelari Trinec U20 | W | 5-4 |
| Czech Republic Extraliga U20 | 2021/11/20 11:15 | Mountfield HK U20 v Ceske Budejovice U20 | W | 5-3 |
| Czech Republic Extraliga U20 | 2021/11/19 14:00 | Mountfield HK U20 v Salzburg U20 | W | 4-0 |
| Czech Republic Extraliga U20 | 2021/11/17 16:00 | Mountfield HK U20 v PSG Zlin U20 | L | 1-3 |
| Czech Republic Extraliga U20 | 2021/12/20 15:00 | HC Kometa Brno U20 v HC Plzen U20 | W | 3-0 |
| Czech Republic Extraliga U20 | 2021/12/19 13:00 | HC Kometa Brno U20 v Karlovy Vary U20 | L | 3-4 |
| Czech Republic Extraliga U20 | 2021/12/03 12:00 | HC Kometa Brno U20 v Kladno U20 | W | 4-2 |
| Czech Republic Extraliga U20 | 2021/11/27 13:30 | Slavia Praha U20 v HC Kometa Brno U20 | W | 1-6 |
| Czech Republic Extraliga U20 | 2021/11/26 17:00 | Dukla Jihlava U20 v HC Kometa Brno U20 | W | 1-4 |
| Czech Republic Extraliga U20 | 2021/11/20 12:00 | HC Kometa Brno U20 v BK Mlada Boleslav U20 | D | 5-5 |
| Czech Republic Extraliga U20 | 2021/11/17 17:00 | Pardubice U20 v HC Kometa Brno U20 | L | 7-3 |
| Czech Republic Extraliga U20 | 2021/11/06 12:00 | Pirati Chomutov U20 v HC Kometa Brno U20 | W | 1-9 |