| Club Friendlies | 2018/09/21 15:00 | Norwid Czestochowa v Kluczbork | L | 3-2 |
| Club Friendlies | 2018/09/16 13:00 | Dafi Spolem Kielce v Kluczbork | W | 2-3 |
| Club Friendlies | 2018/09/09 11:30 | Olimpia Sulecin v Kluczbork | W | 0-3 |
| Club Friendlies | 2018/09/08 16:30 | Krispol Wrzesnia v Kluczbork | W | 1-3 |
| Poland 2nd League | 2018/05/27 15:30 | MCKiS Jaworzno v Kluczbork | W | 2-3 |
| Poland 2nd League | 2018/05/26 14:00 | Kluczbork v Ostroleka | L | 2-3 |
| Poland 2nd League | 2018/05/25 14:00 | Kluczbork v KS Orzel Miedzyrzecz | W | 3-0 |
| Poland 2nd League | 2018/05/23 14:00 | SPS Chrobry Glogow v Kluczbork | W | 0-3 |
| Poland 1 Liga | 2018/10/10 16:00 | Stal Nysa v KPS Siedlce | L | 3-0 |
| Poland 1 Liga | 2018/10/06 15:00 | KPS Siedlce v AGH Krakow | W | 3-0 |
| Club Friendlies | 2018/09/21 16:00 | Lechia Tomaszow Mazowiecki v KPS Siedlce | L | 3-1 |
| Club Friendlies | 2018/09/16 09:00 | KPS Siedlce v Olimpia Sulecin | W | 3-2 |
| Club Friendlies | 2018/09/15 15:00 | Krispol Wrzesnia v KPS Siedlce | L | 3-1 |
| Club Friendlies | 2018/09/12 13:30 | Dafi Spolem Kielce v KPS Siedlce | L | 3-1 |
| Club Friendlies | 2018/09/08 17:30 | KPS Siedlce v Lechia Tomaszow Mazowiecki | L | 2-3 |
| Club Friendlies | 2018/09/08 10:30 | KPS Siedlce v Dafi Spolem Kielce | L | 1-2 |