Kostrzewski Mateusz's 2025-2026 game log below shows every game played that season, with points, rebounds, assists, steals, blocks, minutes, field goal attempts, and three-point attempts. Click any game row to view the full box score. StatBallers updates player game logs after every round of fixtures.
| Date | Matchup | Result | MIN | PTS | REB | AST | STL | BLK | FG | 3P | +/- |
|---|---|---|---|---|---|---|---|---|---|---|---|
| May 20 | @ Zielona Gora | L 80–86 | 14:28 | 1 | 0 | 2 | — | — | 0/1 | 0/0 | — |
| May 18 | @ Zielona Gora | L 70–84 | 23:57 | 10 | 4 | 0 | — | — | 5/7 | 0/0 | — |
| May 16 | vs Zielona Gora | L 79–82 | 24:51 | 5 | 1 | 0 | — | — | 1/4 | 1/1 | — |
| May 13 | vs Zielona Gora | W 80–78 | 16:24 | 6 | 5 | 0 | — | — | 2/4 | 0/3 | — |
| May 6 | @ Legia | L 84–88 | 12:34 | 0 | 3 | 0 | — | — | 0/3 | 0/0 | — |
| May 2 | vs Krosno | W 88–85 | 17:59 | 4 | 3 | 0 | — | — | 2/5 | 0/0 | — |
| Apr 25 | vs Dabrowa Gornicza | W 102–89 | 10:05 | 6 | 3 | 0 | — | — | 2/3 | 0/0 | — |
| Apr 17 | @ Gdynia | W 91–78 | 19:35 | 7 | 3 | 1 | — | — | 2/6 | 0/0 | — |
| Apr 12 | @ GTK Gliwice | W 93–86 | 13:35 | 4 | 1 | 1 | — | — | 1/2 | 0/0 | — |
| Apr 4 | @ Gornik Walbrzych | L 76–97 | 8:50 | 0 | 1 | 2 | — | — | 0/0 | 0/1 | — |
| Mar 28 | vs Trefl Sopot | L 85–96 | 11:51 | 0 | 1 | 0 | — | — | 0/1 | 0/1 | — |
| Mar 21 | vs Dziki Warszawa | W 91–88 | 17:14 | 9 | 3 | 1 | — | — | 2/4 | 1/1 | — |
| Mar 16 | vs Slask Wroclaw | W 90–81 | 11:53 | 2 | 2 | 1 | — | — | 1/2 | 0/0 | — |
| Mar 5 | @ Zielona Gora | W 75–74 | 16:52 | 6 | 2 | 1 | — | — | 1/3 | 0/0 | — |
| Feb 14 | vs Anwil Wloclawek | W 84–74 | 17:25 | 8 | 2 | 2 | — | — | 3/3 | 0/1 | — |
| Feb 5 | @ Ostrow Wielkopolski | L 76–81 | 10:18 | 4 | 1 | 0 | — | — | 2/3 | 0/0 | — |
| Jan 31 | vs Czarni Slupsk | W 84–83 | 15:54 | 12 | 3 | 0 | — | — | 2/3 | 1/1 | — |
| Jan 23 | vs Torun | W 90–82 | 18:19 | 9 | 3 | 1 | — | — | 4/7 | 0/1 | — |
| Jan 11 | vs Legia | W 83–81 | 24:28 | 8 | 3 | 0 | — | — | 3/5 | 0/0 | — |
| Jan 6 | @ Lublin | L 74–83 | 12:29 | 4 | 2 | 0 | — | — | 1/1 | 0/0 | — |
| Jan 3 | @ Krosno | W 82–72 | 16:41 | 2 | 2 | 2 | — | — | 0/1 | 0/1 | — |
| Dec 29 | @ Dabrowa Gornicza | L 93–102 | 14:24 | 11 | 0 | 0 | — | — | 1/2 | 1/1 | — |
| Dec 20 | vs Gdynia | W 90–81 | 11:23 | 2 | 2 | 0 | — | — | 1/2 | 0/1 | — |
| Dec 13 | vs GTK Gliwice | W 85–78 | 13:04 | 2 | 2 | 3 | — | — | 1/1 | 0/0 | — |
| Dec 7 | vs Gornik Walbrzych | L 64–77 | 14:33 | 3 | 4 | 0 | — | — | 1/1 | 0/0 | — |
| Nov 23 | @ Trefl Sopot | L 74–84 | 13:26 | 4 | 1 | 1 | — | — | 1/2 | 0/0 | — |
| Nov 13 | @ Dziki Warszawa | W 96–85 | 10:21 | 6 | 2 | 0 | — | — | 2/2 | 0/0 | — |
| Nov 8 | @ Slask Wroclaw | W 83–80 | 7:42 | 0 | 2 | 1 | — | — | 0/3 | 0/0 | — |
| Nov 1 | vs Zielona Gora | W 80–66 | 11:33 | 0 | 3 | 1 | — | — | 0/1 | 0/1 | — |
| Oct 26 | @ Anwil Wloclawek | W 94–92 | 19:56 | 11 | 6 | 0 | — | — | 3/6 | 1/2 | — |
| Oct 20 | vs Ostrow Wielkopolski | W 97–72 | 14:48 | 2 | 1 | 1 | — | — | 1/2 | 0/0 | — |
| Oct 12 | @ Czarni Slupsk | L 76–101 | 2:18 | 0 | 0 | 0 | — | — | 0/0 | 0/1 | — |