| Season | Team | Competition | MP | G | A | Rating | ||
|---|---|---|---|---|---|---|---|---|
| 2024/2025 | West Bromwich Albion | League Cup | 0 | 0 | 0 | 0 | 0 | – |
| 2024/2025 | West Bromwich Albion | FA Cup | 0 | 0 | 0 | 0 | 0 | – |
| 2023/2024 | West Bromwich Albion | League Cup | 1 | 0 | 0 | 0 | 0 | 7.3 |
| 2023/2024 | West Bromwich Albion | FA Cup | 2 | 0 | 0 | 1 | 0 | 6.2 |
| 2022/2023 | West Bromwich Albion | League Cup | 2 | 0 | 0 | 0 | 0 | 7.0 |
| 2022/2023 | West Bromwich Albion | FA Cup | 0 | 0 | 0 | 0 | 0 | – |
| 2021/2022 | West Bromwich Albion | League Cup | 0 | 0 | 0 | 0 | 0 | – |
| 2021/2022 | West Bromwich Albion | FA Cup | 1 | 0 | 0 | 0 | 0 | 6.2 |
| 2020/2021 | West Bromwich Albion | League Cup | 0 | 0 | 0 | 0 | 0 | – |
| 2020/2021 | West Bromwich Albion | FA Cup | 1 | 0 | 0 | 0 | 0 | 6.3 |
| 2019/2020 | West Bromwich Albion | League Cup | 0 | 0 | 0 | 0 | 0 | – |
| 2019/2020 | West Bromwich Albion | FA Cup | 2 | 0 | 0 | 0 | 0 | 6.7 |
| 2018/2019 | West Bromwich Albion | League Cup | 1 | 0 | 0 | 0 | 0 | 6.7 |
| 2018/2019 | West Bromwich Albion | FA Cup | 3 | 1 | 0 | 0 | 0 | 7.2 |
| 2017/2018 | Swansea City | League Cup | 1 | 0 | 0 | 0 | 0 | 7.0 |
| 2017/2018 | Swansea City | FA Cup | 6 | 0 | 0 | 1 | 0 | 7.4 |
| 2016/2017 | Leeds United | League Cup | 4 | 0 | 0 | 2 | 0 | – |
| 2016/2017 | Leeds United | FA Cup | 1 | 0 | 0 | 0 | 0 | 6.7 |
| 2015/2016 | Swansea City | League Cup | 2 | 0 | 0 | 0 | 0 | – |
| 2015/2016 | Swansea City | FA Cup | 1 | 0 | 0 | 0 | 0 | – |
| 2014/2015 | Swansea City | League Cup | 1 | 0 | 0 | 0 | 0 | – |
| 2014/2015 | Swansea City | FA Cup | 2 | 0 | 0 | 1 | 1 | – |
| 2013/2014 | Swansea City | FA Cup | 1 | 0 | 0 | 0 | 0 | – |
| 2013/2014 | Birmingham City | League Cup | 2 | 2 | 0 | 0 | 0 | – |
| 2012/2013 | Swansea City | FA Cup | 2 | 0 | 0 | 1 | 0 | – |
| 2012/2013 | Swansea City | League Cup | 1 | 0 | 0 | 0 | 0 | – |
| 2011/2012 | Rangers | Scottish Cup | 2 | 0 | 0 | 1 | 0 | – |
| 2010/2011 | Rangers | Scottish Cup | 1 | 0 | 0 | 0 | 0 | – |
| 2010/2011 | Sheffield United | League Cup | 1 | 0 | 0 | 0 | 0 | – |
| 2010/2011 | Sheffield United | FA Cup | 1 | 0 | 0 | 0 | 0 | – |
| Total | 42 | 3 | 0 | 7 | 1 | – | ||
| Date | From | To | Type | |
|---|---|---|---|---|
| - | Swansea | West Bromwich | N/A | |
| 07 Jan 2016 | Swansea | Leeds | Loan | |
| - | Birmingham | Swansea | N/A | |
| 07 Feb 2013 | Swansea | Birmingham | Loan | |
| - | Arsenal | Swansea | € 1.3M | |
| 02 Jan 2011 | Arsenal | Rangers | Loan | |
| 02 Jan 2010 | Arsenal | Sheff Utd | Loan |
K. Bartley career history shows progression across clubs and competitions, including club timeline, national team appearances and overall career totals.