| Season | League | Apps | Min | Goals | Assists | G+A / 90 | Rating |
|---|---|---|---|---|---|---|---|
| 2025/2026 | Super Lig | 31 | 2446 | 6 | 3 | 0.33 | 7.07 |
| 2018/2019 | Ekstraklasa | 1 | 0 | 0 | 0 | — | — |
| 2019/2020 | Ekstraklasa | 3 | 28 | 0 | 0 | — | — |
| 2020/2021 | Ekstraklasa | 20 | 1067 | 1 | 3 | 0.34 | — |
| 2021/2022 | Pro League | 10 | 216 | 0 | 0 | 0 | 6.57 |
| 2021/2022 | Ekstraklasa | 16 | 916 | 3 | 2 | 0.49 | 6.88 |
| 2022/2023 | Eredivisie | 27 | 1952 | 1 | 5 | 0.28 | 6.7 |
| 2022/2023 | Premier League 2 Division One | 1 | 61 | 0 | 0 | — | — |
| 2023/2024 | Eredivisie | 29 | 1984 | 0 | 3 | 0.14 | 6.88 |
| 2024/2025 | Super Lig | 23 | 984 | 1 | 0 | 0.09 | 6.85 |
Domestic league competitions only; G+A/90 computed from minutes actually played.
Cohort: 84 Super Lig midfielders, 2024/2025, min. 450 minutes. Computed by ranking the full league corpus, not taken from any feed.
Figures computed from the GioScore season-stats database · as of 2026-07-05
Player stats against each opponent club
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 Sparta Rotterdam | 5 | 0 | 0 | 5 | 1 | 0 | 0 | 0 |
 Antalyaspor | 4 | 3 | 1 | 0 | 3 | 2 | 1 | 0 |
 Fenerbahçe | 4 | 0 | 0 | 4 | 0 | 0 | 0 | 0 |
 NEC Nijmegen | 4 | 2 | 1 | 1 | 1 | 1 | 1 | 0 |
 FC Twente | 4 | 0 | 1 | 3 | 0 | 0 | 1 | 0 |
 Ajax | 4 | 0 | 2 | 2 | 1 | 0 | 0 | 0 |
 Go Ahead Eagles | 4 | 1 | 1 | 2 | 0 | 0 | 1 | 0 |
 Trabzonspor | 4 | 0 | 2 | 2 | 0 | 0 | 1 | 0 |
 RKC Waalwijk | 4 | 0 | 1 | 3 | 0 | 1 | 1 | 0 |
 Rizespor | 4 | 0 | 1 | 3 | 0 | 0 | 0 | 0 |
 Kasımpaşa | 4 | 2 | 2 | 0 | 1 | 0 | 1 | 0 |
 FC Volendam | 4 | 1 | 2 | 1 | 0 | 0 | 0 | 0 |
 Samsunspor | 4 | 0 | 2 | 2 | 0 | 0 | 2 | 0 |
 Göztepe | 4 | 1 | 1 | 2 | 0 | 0 | 1 | 0 |
 Galatasaray | 3 | 0 | 0 | 3 | 0 | 0 | 1 | 0 |
 AZ | 3 | 0 | 1 | 2 | 0 | 0 | 1 | 0 |
 Alanyaspor | 3 | 0 | 2 | 1 | 1 | 0 | 0 | 0 |
 Beşiktaş | 3 | 1 | 2 | 0 | 0 | 1 | 2 | 0 |
 Kayserispor | 3 | 2 | 1 | 0 | 1 | 0 | 0 | 0 |
 PSV | 3 | 0 | 1 | 2 | 0 | 0 | 0 | 0 |
Player stats against each opponent national team
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 Sweden | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 New Zealand | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Iceland | 1 | 0 | 1 | 0 | 0 | 1 | 0 | 0 |
 Slovakia | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Malta | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Netherlands | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Russia | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Spain | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Faroe Islands | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 San Marino | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 0 |
 Lithuania | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Finland U17 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Russia U17 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Portugal U21 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Latvia U21 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 France U21 | 1 | 0 | 0 | 1 | 0 | 0 | 1 | 0 |
 Ukraine U21 | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 0 |
 Finland U21 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Georgia U21 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Liechtenstein U17 | 1 | 1 | 0 | 0 | 2 | 0 | 0 | 0 |
Kacper Kozlowski's 2025/2026 Super Lig season produced 6 goals and 3 assists across 31 appearances (2,446 minutes) — 0.33 goal involvements per 90. That season graded out at an average match rating of 7.07. Measured against the 84 Super Lig midfielders who played 450+ minutes in 2024/2025, he sits in the 24th percentile by match rating; on goals he ranks 16th of 84.
The 2025/2026 rating of 7.07 is the best of his recorded career; his lowest came in 2021/2022 (6.57).
| Club | Period | Apps | Goals | Assists | Minutes | YC | RC | Rating |
|---|---|---|---|---|---|---|---|---|
| Vitesse | 2022/2023 - 2023/2024 | 62 | 6 | 10 | 4236 | — | — | 6.87 |
| Gaziantep F.K. | 2024/2025 - now | 58 | 10 | 6 | 3880 | — | — | 6.64 |
| Pogoń Szczecin | 2018/2019 - 2021/2022 | 41 | 4 | 5 | 2055 | — | — | 6.88 |
| Union Saint-Gilloise | 2021/2022 | 10 | 0 | 0 | 216 | — | — | 6.57 |
| Poland (national team) | 2020 - now | 3 | 0 | 0 | 57 | — | — | — |
| Total | 171 | 20 | 21 | 10387 |
| Season | Club | Apps | Goals | Assists | Minutes | YC | RC | Rating |
|---|---|---|---|---|---|---|---|---|
| 25/26 | Gaziantep F.K. | 34 | 6 | — | 2550 | 4 | 0 | 6.54 |
| 24/25 | Gaziantep F.K. | 24 | 4 | — | 1330 | 6 | 0 | 6.85 |
| 23/24 | Vitesse | 34 | 3 | — | 2164 | 4 | 0 | 6.96 |
| 22/23 | Vitesse | 28 | 3 | — | 2072 | 4 | 0 | 6.70 |
| 21/22 | Pogoń Szczecin | 17 | 3 | — | 960 | 2 | 0 | 6.88 |
| 21/22 | Union Saint-Gilloise | 10 | 0 | — | 216 | 1 | 0 | 6.57 |
| 20/21 | Pogoń Szczecin | 20 | 1 | — | 1067 | 4 | 0 | — |
| 19/20 | Pogoń Szczecin | 3 | 0 | — | 28 | 1 | 0 | — |
| 19/20 | Poland (national team) | 3 | 0 | — | 57 | 0 | 0 | — |
