Home History
| Europe Friendlies | 2018/02/14 12:00 | Widzew Lodz v KSZO Ostrowiec | L | 5-2 |
| Europe Friendlies | 2018/02/06 16:50 | KSZO Ostrowiec v Czarni Polaniec | W | 2-0 |
| Europe Friendlies | 2018/01/27 10:00 | KSZO Ostrowiec v KS Powislanka | L | 0-1 |
| Poland III Liga | 2017/11/18 16:01 | Motor Lublin v KSZO Ostrowiec | D | 0-0 |
| Poland III Liga | 2017/08/30 15:00 | KSZO Ostrowiec v MKS Trzebinia-Siersza | W | 2-1 |
| Poland Cup | 2017/07/22 15:00 | KSZO Ostrowiec v Stal Mielec | L | 0-1 |
| Poland Cup | 2017/07/18 15:00 | KSZO Ostrowiec v Warta Poznan | W | 4-3 |
| Poland Regional Cup | 2017/06/21 15:00 | Korona Kielce II v KSZO Ostrowiec | W | 0-8 |
Away History
| Europe Friendlies | 2018/02/16 10:00 | Partizan Bardejov v Siarka Tarnobrzeg | L | 4-0 |
| Europe Friendlies | 2018/02/03 11:30 | Siarka Tarnobrzeg v Motor Lublin | W | 5-2 |
| World Club Friendlies | 2018/01/24 15:00 | Siarka Tarnobrzeg v Unia Tarnow | L | 0-5 |
| Europe Friendlies | 2018/01/20 13:00 | Siarka Tarnobrzeg v Cracovia Krakow | W | 2-1 |
| Poland II Liga | 2017/11/26 12:00 | Radomiak Radom v Siarka Tarnobrzeg | W | 1-2 |
| Poland II Liga | 2017/11/18 12:00 | Siarka Tarnobrzeg v Wisla Pulawy | W | 1-0 |
| Poland II Liga | 2017/11/11 12:00 | Siarka Tarnobrzeg v Warta Poznan | W | 2-0 |
| Poland II Liga | 2017/11/05 12:00 | Olimpia Elblag v Siarka Tarnobrzeg | L | 2-1 |