| Season | League | Apps | Min | Goals | Assists | G+A / 90 | Rating |
|---|---|---|---|---|---|---|---|
| — | 2. Liga | 1 | 34 | 1 | 0 | — | 7 |
| 2019/2020 | 1. Liga | 4 | 72 | 0 | 0 | — | — |
| 2021/2022 | 1. Liga | 16 | 12 | 0 | 0 | — | — |
| 2022/2023 | 1. Liga | 6 | 81 | 0 | 0 | — | — |
| 2023/2024 | 1. Liga | 24 | 1146 | 1 | 1 | 0.16 | — |
| 2024/2025 | Ekstraklasa | 11 | 130 | 1 | 0 | 0.69 | 6.81 |
| 2025/2026 | 1. Liga | 24 | 893 | 3 | 1 | 0.4 | 6.53 |
Domestic league competitions only (SportMonks sub_type='domestic'); national-team, continental and cup competitions are excluded. Classification resolved by league id against the canonical leagues index. G+A/90 computed from minutes actually played.
Figures computed from the GioScore season-stats database · as of 2026-08-02
Player stats against each opponent club
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 Puszcza Niepołomice | 7 | 2 | 1 | 4 | 0 | 0 | 1 | 0 |
 Radomiak Radom | 4 | 2 | 0 | 2 | 0 | 0 | 0 | 0 |
 Stal Mielec | 4 | 1 | 0 | 3 | 0 | 0 | 0 | 0 |
 Odra Opole | 4 | 1 | 2 | 1 | 0 | 0 | 0 | 0 |
 Lechia Gdańsk | 3 | 2 | 1 | 0 | 0 | 0 | 0 | 0 |
 Wisła Kraków | 3 | 1 | 0 | 2 | 0 | 0 | 0 | 0 |
 Pogoń Siedlce | 3 | 2 | 0 | 1 | 1 | 0 | 0 | 0 |
 Chrobry Głogów | 3 | 0 | 1 | 2 | 0 | 0 | 0 | 0 |
 Katowice | 3 | 1 | 2 | 0 | 1 | 0 | 1 | 0 |
 Korona Kielce | 3 | 0 | 1 | 2 | 0 | 0 | 0 | 0 |
 Polonia Warszawa | 3 | 2 | 1 | 0 | 0 | 0 | 0 | 0 |
 Miedź Legnica | 2 | 0 | 1 | 1 | 0 | 0 | 0 | 0 |
 Górnik Łęczna | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 0 |
 Nieciecza | 2 | 1 | 0 | 1 | 0 | 0 | 1 | 0 |
 Raków Częstochowa | 2 | 0 | 1 | 1 | 0 | 0 | 0 | 0 |
 GKS Tychy | 2 | 0 | 1 | 1 | 0 | 0 | 0 | 0 |
 Śląsk Wrocław | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 0 |
 Zagłębie Sosnowiec | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 0 |
 Polonia Bytom | 2 | 0 | 1 | 1 | 0 | 0 | 0 | 0 |
 Polkowice | 2 | 2 | 0 | 0 | 1 | 0 | 0 | 0 |
Player stats against each opponent national team
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 Serbia U19 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Kazakhstan U19 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Northern Ireland U19 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
Kacper Wełniak closed the 2025/2026 1. Liga campaign on 3 goals and 1 assist from 24 outings (893 minutes) — 0.4 goal involvements per 90. That season graded out at an average match rating of 6.53.
7 league seasons sit on his record, from 2019 to 2025 across 7 clubs. At his best he averaged 6.81 in 2024/2025, Ekstraklasa; at his worst, 6.53 in 2025/2026.
