| Temporada | Equipo | Competición | PJ | G | A | Nota | ||
|---|---|---|---|---|---|---|---|---|
| 2025/2026 | Udinese | Coppa Italia | 2 | 0 | 0 | 0 | 0 | – |
| 2024/2025 | Udinese | Coppa Italia | 2 | 0 | 0 | 0 | 0 | 6.8 |
| 2023/2024 | Lech Poznan | Polish Cup | 2 | 0 | 0 | 1 | 0 | – |
| 2022/2023 | Lech Poznan | Polish Cup | 1 | 0 | 0 | 0 | 0 | – |
| 2022 | Lech Poznan | Super Cup | 1 | 0 | 0 | 1 | 0 | – |
| 2021/2022 | Lech Poznan | Polish Cup | 4 | 0 | 0 | 1 | 0 | – |
| 2020/2021 | Lech Poznan | Polish Cup | 2 | 0 | 0 | 0 | 0 | – |
| 2019/2020 | Djurgarden | Svenska Cupen | 3 | 1 | 0 | 0 | 0 | – |
| 2018/2019 | Djurgarden | Svenska Cupen | 6 | 2 | 0 | 3 | 1 | – |
| 2017/2018 | Djurgarden | Svenska Cupen | 6 | 0 | 0 | 4 | 0 | – |
| 2016/2017 | Djurgarden | Svenska Cupen | 1 | 1 | 0 | 0 | 0 | – |
| 2015/2016 | Djurgarden | Svenska Cupen | 1 | 1 | 0 | 0 | 0 | – |
| 2014/2015 | Djurgarden | Svenska Cupen | 1 | 1 | 0 | 0 | 0 | – |
| 2013/2014 | Brommapojkarna | Svenska Cupen | 1 | 1 | 0 | 0 | 0 | – |
| Total | 33 | 7 | 0 | 10 | 1 | – | ||
| Fecha | Desde | Hacia | Tipo | |
|---|---|---|---|---|
| 08 mar 2024 | Lech Poznan | Udinese | Transfer | |
| 01 ene 2021 | Djurgarden | Lech Poznan | Transfer | |
| - | Brommapojkarna | Djurgarden | Transfer |
J. Karlstrom career history shows progression across clubs and competitions, including club timeline, national team appearances and overall career totals.