| Czech Extraliga U20 Cup | 2019/11/16 12:00 | Kladno U20 v Mountfield HK U20 | W | 2-3 |
| Czech Republic Extraliga U20 | 2018/03/14 17:00 | Mountfield HK U20 v Kladno U20 | W | 10-4 |
| Czech Republic Extraliga U20 | 2017/01/20 15:00 | Kladno U20 v Mountfield HK U20 | L | 3-1 |
| Czech Republic Extraliga U20 | 2016/11/24 16:22 | Mountfield HK U20 v Kladno U20 | L | 3-6 |
| Czech Republic Extraliga U20 | 2022/01/07 16:00 | Mountfield HK U20 v Sparta Praha U20 | L | 0-6 |
| Czech Republic Extraliga U20 | 2022/01/04 14:00 | Mountfield HK U20 v HC Kometa Brno U20 | L | 1-4 |
| 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 | 2022/01/06 17:00 | Pardubice U20 v Kladno U20 | L | 4-3 |
| Czech Republic Extraliga U20 | 2021/12/20 15:45 | Kladno U20 v BK Mlada Boleslav U20 | L | 1-4 |
| Czech Republic Extraliga U20 | 2021/12/19 11:00 | Kladno U20 v Bili Tygri Liberec U20 | L | 0-8 |
| Czech Republic Extraliga U20 | 2021/12/03 12:00 | HC Kometa Brno U20 v Kladno U20 | L | 4-2 |
| Czech Republic Extraliga U20 | 2021/11/26 15:45 | Kladno U20 v Litvinov U20 | W | 3-1 |
| Czech Republic Extraliga U20 | 2021/11/20 11:00 | Kladno U20 v HC Ocelari Trinec U20 | L | 1-5 |
| Czech Republic Extraliga U20 | 2021/11/19 15:45 | Kladno U20 v HC AZ Havirov U20 | L | 2-4 |
| Czech Republic Extraliga U20 | 2021/11/17 17:00 | Kladno U20 v Dukla Jihlava U20 | L | 0-3 |