| Czech Republic Extraliga U20 | 2023/03/10 12:30 | Mountfield HK U20 v BK Mlada Boleslav U20 | W | 1-5 |
| Czech Republic Extraliga U20 | 2023/01/12 17:00 | BK Mlada Boleslav U20 v Mountfield HK U20 | W | 5-2 |
| Czech Republic Extraliga U20 | 2022/01/13 16:15 | Mountfield HK U20 v BK Mlada Boleslav U20 | W | 1-2 |
| Czech Republic Extraliga U20 | 2021/10/22 15:00 | BK Mlada Boleslav U20 v Mountfield HK U20 | W | 8-4 |
| Czech Extraliga U20 Cup | 2019/10/24 16:14 | BK Mlada Boleslav U20 v Mountfield HK U20 | L | 0-2 |
| Czech Extra U20 (Regulation Only) | 2018/10/25 16:00 | BK Mlada Boleslav U20 v Mountfield HK U20 | L | 1-11 |
| Czech Extra U20 (Regulation Only) | 2018/09/13 15:00 | BK Mlada Boleslav U20 v Mountfield HK U20 | W | 2-1 |
| Czech Republic Extraliga U20 | 2018/03/23 17:00 | Mountfield HK U20 v BK Mlada Boleslav U20 | L | 2-1 |
| Club Friendlies (Regulation Only) | 2023/08/22 16:00 | Sparta Praha U20 v BK Mlada Boleslav U20 | W | 1-3 |
| Club Friendlies (Regulation Only) | 2023/08/18 14:00 | BK Mlada Boleslav U20 v HC Plzen U20 | W | 2-1 |
| Club Friendlies (Regulation Only) | 2023/08/13 12:00 | Karlovy Vary U20 v BK Mlada Boleslav U20 | L | 3-0 |
| Club Friendlies (Regulation Only) | 2023/08/11 13:00 | BK Mlada Boleslav U20 v HC Ocelari Trinec U20 | D | 1-1 |
| Club Friendlies (Regulation Only) | 2023/08/10 13:00 | Kolner Haie U20 v BK Mlada Boleslav U20 | W | 1-3 |
| Club Friendlies (Regulation Only) | 2023/08/03 15:30 | BK Mlada Boleslav U20 v Bili Tygri Liberec U20 | L | 2-4 |
| Club Friendlies (Regulation Only) | 2023/07/28 13:00 | HC Plzen U20 v BK Mlada Boleslav U20 | L | 3-2 |
| Czech Republic Extraliga U20 | 2023/04/17 15:00 | BK Mlada Boleslav U20 v Dukla Jihlava U20 | W | 3-2 |
| Czech Republic Extraliga U20 | 2023/08/26 11:15 | Mountfield HK U20 v Bili Tygri Liberec U20 | L | 1-2 |
| Club Friendlies (Regulation Only) | 2023/08/19 10:00 | HC Kometa Brno U20 v Mountfield HK U20 | W | 1-2 |
| Club Friendlies (Regulation Only) | 2023/08/17 10:00 | Mountfield HK U20 v HC Kometa Brno U20 | L | 1-4 |
| Club Friendlies (Regulation Only) | 2023/08/15 14:15 | Sparta Praha U20 v Mountfield HK U20 | W | 3-4 |
| Club Friendlies (Regulation Only) | 2023/08/10 10:45 | Mountfield HK U20 v Sparta Praha U20 | D | 1-1 |
| Club Friendlies (Regulation Only) | 2023/08/01 14:00 | Bili Tygri Liberec U20 v Mountfield HK U20 | W | 1-2 |
| Czech Republic Extraliga U20 | 2023/03/16 17:15 | Pardubice U20 v Mountfield HK U20 | L | 4-2 |
| Czech Republic Extraliga U20 | 2023/03/10 12:30 | Mountfield HK U20 v BK Mlada Boleslav U20 | L | 1-5 |