| Season | Team | Competition | MP | G | A | Rating | ||
|---|---|---|---|---|---|---|---|---|
| 2025/2026 | Al Dhafra | Presidents Cup | 1 | 0 | 0 | 0 | 0 | – |
| 2025/2026 | Al Dhafra | League Cup | 1 | 0 | 0 | 0 | 0 | – |
| 2024/2025 | Al Orubah | King Cup | 1 | 1 | 0 | 0 | 0 | – |
| 2023/2024 | Burnley | EFL Cup | 1 | 0 | 0 | 0 | 0 | 6.9 |
| 2022/2023 | Burnley | FA Cup | 3 | 0 | 1 | 0 | 0 | 6.9 |
| 2022/2023 | Burnley | EFL Cup | 3 | 0 | 0 | 1 | 0 | 6.8 |
| 2021/2022 | Burnley | EFL Cup | 2 | 0 | 0 | 0 | 0 | 6.7 |
| 2020/2021 | Burnley | FA Cup | 3 | 0 | 0 | 0 | 0 | 6.6 |
| 2020/2021 | Burnley | EFL Cup | 1 | 0 | 0 | 0 | 0 | 6.2 |
| 2019/2020 | Burnley | FA Cup | 1 | 0 | 0 | 0 | 0 | – |
| 2018/2019 | Burnley | FA Cup | 1 | 0 | 0 | 0 | 0 | – |
| 2018/2019 | Burnley | EFL Cup | 1 | 0 | 1 | 0 | 0 | – |
| 2017/2018 | Burnley | FA Cup | 1 | 0 | 0 | 0 | 0 | 6.3 |
| 2017/2018 | Burnley | EFL Cup | 2 | 0 | 0 | 1 | 0 | – |
| 2016/2017 | Burnley | FA Cup | 1 | 0 | 0 | 0 | 0 | 6.3 |
| 2016/2017 | Burnley | EFL Cup | 1 | 0 | 0 | 0 | 0 | – |
| 2015/2016 | Charlton | Capital One Cup | 1 | 0 | 0 | 0 | 0 | – |
| 2014/2015 | Charlton | FA Cup | 1 | 1 | 0 | 1 | 0 | – |
| 2013/2014 | AZ Alkmaar | KNVB Beker | 3 | 0 | 0 | 0 | 0 | – |
| 2013 | AZ Alkmaar | Super Cup | 1 | 1 | 0 | 0 | 0 | – |
| 2012/2013 | AZ Alkmaar | KNVB Beker | 6 | 4 | 0 | 1 | 0 | – |
| 2011/2012 | AZ Alkmaar | KNVB Beker | 3 | 2 | 0 | 0 | 0 | – |
| Total | 39 | 9 | 2 | 4 | 0 | – | ||
| Date | From | To | Type | |
|---|---|---|---|---|
| 07 Oct 2025 | Al Orubah | Al Dhafra | Free agent | |
| - | Burnley | Al Orubah | ||
| - | Charlton | Burnley | Transfer | |
| 07 Nov 2014 | AZ Alkmaar | Charlton | Free agent | |
| - | Breidablik | AZ Alkmaar | Transfer | |
| 07 Jan 2007 | Fulham | Breidablik | Free agent | |
| 07 Jan 2006 | Chelsea | Fulham | Free agent | |
| 01 Jan 2006 | Breidablik | Chelsea | Free agent |
J. Gudmundsson career history shows progression across clubs and competitions, including club timeline, national team appearances and overall career totals.