| sunday december 29 - 08:04 |  Sparta Łódź U21 | 3-0 | 0 | U21 league [3] | RCB | | |
| saturday december 28 - 17:02 | FC Saint Javelin U21 | 3-0 | 0 | U21 league [3] | RCB | | |
| thursday december 26 - 17:05 | Gwardia Warszawa U21 | 3-1 | 3 | U21 league [3] | RCB | | |
| wednesday december 25 - 17:01 | Warsaw #4 U21 | 2-0 | 3 | U21 league [3] | RCB | | |
| monday december 23 - 17:05 | Wroclaw #10 U21 | 1-5 | 3 | U21 league [3] | RCB | | |
| sunday december 22 - 17:02 | Millwall U21 | 3-1 | 3 | U21 league [3] | RCB | | |
| friday december 20 - 10:02 | ⚡FMHS Kapibara Słupsk⚡ U21 | 2-4 | 3 | U21 league [3] | RCB | | |
| thursday december 19 - 17:05 | Wroclaw #10 U21 | 4-0 | 3 | U21 league [3] | RCB | | |
| tuesday december 17 - 17:02 | FC Tumnnus U21 | 4-0 | 3 | U21 league [3] | RCB | | |
| monday december 16 - 17:05 | FC Nasi Chłopcy U21 | 4-2 | 3 | U21 league [3] | RCB | | |
| saturday december 14 - 17:05 | FC Nasi Chłopcy U21 | 6-1 | 3 | U21 league [3] | RCB | | |
| friday december 13 - 17:02 | FC Wyżyny U21 | 2-2 | 1 | U21 league [3] | RCB | | |
| thursday december 12 - 15:02 | ECIU U21 | 1-3 | 0 | U21 Youth Cup | RCB | | |
| wednesday december 11 - 20:02 | Gwardia Warszawa U21 | 1-4 | 3 | U21 league [3] | RCB | | |
| tuesday december 10 - 17:02 | KKS SANDECJA Nowy Sącz U21 | 3-1 | 0 | U21 league [3] | RCB | | |
| sunday december 8 - 17:03 | Miedź Legnica U21 | 3-2 | 3 | U21 league [3] | RCB | | |
| saturday december 7 - 17:01 | KS Leśnik Puławy U21 | 3-2 | 3 | U21 league [3] | RCB | | |
| thursday december 5 - 17:05 | Wroclaw #10 U21 | 5-2 | 3 | U21 league [3] | RCB | | |
| thursday december 5 - 15:24 | MKS Wataha Poznań | 1-4 | 0 | Cup | SB | | |
| wednesday december 4 - 14:04 | San Antonio Renctiers U21 | 1-2 | 3 | U21 league [3] | RCB | | |
| wednesday december 4 - 05:00 |  Schoten SK | 6-3 | 0 | Friendly | RB | |  |
| tuesday december 3 - 17:29 | FC Tumnnus | 6-3 | 3 | League of Poland [3.2] | SB | | |
| monday december 2 - 19:00 |  Inter Miami | 0-1 | 3 | Friendly | SB | | |
| monday december 2 - 17:03 | Terrorym Włocławek U21 | 3-0 | 3 | U21 league [3] | RCB | | |
| monday december 2 - 13:50 | FC Tumnnus | 1-6 | 3 | Friendly | RB |  | |
