| Season | Team | Competition | MP | G | A | Rating | ||
|---|---|---|---|---|---|---|---|---|
| 2024/2025 | U. Cluj | Superliga | 8 | 0 | 0 | 1 | 0 | 6.8 |
| 2023/2024 | Hansa Rostock | 2. Bundesliga | 21 | 2 | 0 | 2 | 0 | 6.8 |
| 2022/2023 | Paderborn | 2. Bundesliga | 6 | 0 | 0 | 0 | 0 | 6.6 |
| 2021/2022 | Paderborn | 2. Bundesliga | 30 | 0 | 0 | 6 | 0 | 6.9 |
| 2020/2021 | Basel | Super League | 9 | 0 | 0 | 1 | 0 | 6.9 |
| 2019/2020 | Basel | Super League | 25 | 1 | 0 | 2 | 1 | 6.8 |
| 2019/2020 | Liefering | 2. Liga | 9 | 0 | 0 | 4 | 1 | – |
| 2018/2019 | Salzburg | Tipico Bundesliga | 4 | 0 | 0 | 0 | 0 | 7.3 |
| 2018/2019 | Liefering | 2. Liga | 3 | 0 | 0 | 1 | 0 | – |
| 2017/2018 | St. Gallen | Super League | 9 | 0 | 1 | 2 | 0 | – |
| Total | 124 | 3 | 1 | 19 | 2 | – | ||
| Date | From | To | Type | |
|---|---|---|---|---|
| 08 Jun 2024 | Paderborn | U. Cluj | Free agent | |
| - | Hansa Rostock | Paderborn | Return from loan | |
| - | Paderborn | Hansa Rostock | Loan | |
| 07 Jan 2022 | Salzburg | Paderborn | Transfer | |
| - | Paderborn | Salzburg | Return from loan | |
| 07 Jan 2021 | Salzburg | Paderborn | Loan | |
| - | Basel | Salzburg | Return from loan | |
| 01 Sept 2020 | Salzburg | Basel | Loan | |
| 07 Jan 2018 | St. Gallen | Salzburg | Transfer |
J. van der Werff career history shows progression across clubs and competitions, including club timeline, national team appearances and overall career totals.