| Club Friendlies (Regulation Only) | 2021/08/24 11:00 | Kladno U20 v Slavia Praha U20 | W | 2-3 |
| Club Friendlies (Regulation Only) | 2021/08/12 13:30 | Slavia Praha U20 v Kladno U20 | L | 2-4 |
| Czech Extraliga U20 Cup | 2020/02/27 13:00 | Kladno U20 v Slavia Praha U20 | L | 3-2 |
| Czech Extraliga U20 Cup | 2020/01/18 11:00 | Kladno U20 v Slavia Praha U20 | L | 4-1 |
| Czech Extraliga U20 Cup | 2019/11/02 16:45 | Slavia Praha U20 v Kladno U20 | W | 5-1 |
| Club Friendlies (Regulation Only) | 2018/08/23 10:30 | Slavia Praha U20 v Kladno U20 | L | 0-3 |
| Czech Republic Extraliga U20 | 2018/03/16 15:00 | Kladno U20 v Slavia Praha U20 | L | 5-3 |
| Czech Republic Extraliga U20 | 2017/12/20 13:00 | Kladno U20 v Slavia Praha U20 | L | 5-2 |
| Czech Republic Extraliga U20 | 2021/09/24 16:00 | Slavia Praha U20 v Sparta Praha U20 | L | 2-8 |
| Czech Republic Extraliga U20 | 2021/09/11 11:30 | HC Kometa Brno U20 v Slavia Praha U20 | W | 1-2 |
| Club Friendlies (Regulation Only) | 2021/09/01 14:30 | Pardubice U20 v Slavia Praha U20 | L | 6-2 |
| Club Friendlies (Regulation Only) | 2021/08/24 11:00 | Kladno U20 v Slavia Praha U20 | W | 2-3 |
| Club Friendlies (Regulation Only) | 2021/08/17 13:00 | Slavia Praha U20 v Sparta Praha U20 | L | 0-7 |
| Club Friendlies (Regulation Only) | 2021/08/12 13:30 | Slavia Praha U20 v Kladno U20 | L | 2-4 |
| Club Friendlies (Regulation Only) | 2021/08/10 10:30 | Slavia Praha U20 v Litvinov U20 | W | 1-0 |
| Club Friendlies (Regulation Only) | 2021/08/03 16:00 | Slavia Praha U20 v HC Plzen U20 | L | 1-5 |
| Czech Republic Extraliga U20 | 2021/09/24 16:00 | Dukla Jihlava U20 v Kladno U20 | L | 5-1 |
| Czech Republic Extraliga U20 | 2021/09/17 14:00 | Kladno U20 v HC Kometa Brno U20 | L | 1-5 |
| Club Friendlies (Regulation Only) | 2021/08/26 15:45 | Sparta Praha U20 v Kladno U20 | D | 4-4 |
| Club Friendlies (Regulation Only) | 2021/08/24 11:00 | Kladno U20 v Slavia Praha U20 | L | 2-3 |
| Club Friendlies (Regulation Only) | 2021/08/12 13:30 | Slavia Praha U20 v Kladno U20 | W | 2-4 |
| Club Friendlies (Regulation Only) | 2021/08/05 16:45 | Pirati Chomutov U20 v Kladno U20 | W | 3-4 |
| Club Friendlies (Regulation Only) | 2021/08/03 10:30 | Kladno U20 v Sparta Praha U20 | D | 2-2 |
| Club Friendlies (Regulation Only) | 2021/07/30 10:30 | Kladno U20 v HC Plzen U20 | W | 2-0 |