| Temporada | Equipo | Competición | PJ | G | A | Nota | ||
|---|---|---|---|---|---|---|---|---|
| 2019/2020 | Cheltenham Town | League Two | 0 | 0 | 0 | 0 | 0 | – |
| 2018/2019 | Cheltenham Town | League Two | 19 | 0 | 0 | 1 | 0 | – |
| 2017/2018 | Luton Town | League Two | 17 | 2 | 0 | 1 | 0 | – |
| 2016/2017 | Luton Town | League Two | 23 | 0 | 0 | 2 | 1 | – |
| 2015/2016 | Oxford United | League Two | 40 | 0 | 0 | 5 | 0 | – |
| 2014/2015 | Oxford United | League Two | 44 | 2 | 0 | 3 | 0 | – |
| 2013/2014 | Oxford United | League Two | 35 | 3 | 0 | 2 | 0 | – |
| 2012/2013 | Rotherham United | League Two | 27 | 4 | 0 | 0 | 1 | – |
| 2012/2013 | Oxford United | League Two | 8 | 2 | 0 | 0 | 0 | – |
| 2012/2013 | Rotherham United | League Two | 2 | 0 | 0 | 0 | 0 | – |
| 2011/2012 | Rotherham United | League Two | 35 | 2 | 0 | 2 | 0 | – |
| 2010/2011 | Rotherham United | League Two | 35 | 1 | 0 | 3 | 0 | – |
| 2009/2010 | Stockport County | League One | 36 | 1 | 0 | 9 | 0 | – |
| 2008/2009 | Stockport County | League One | 33 | 4 | 0 | 1 | 0 | – |
| Total | 354 | 21 | 0 | 29 | 2 | – | ||
| Fecha | Desde | Hacia | Tipo | |
|---|---|---|---|---|
| 07 ene 2018 | Luton | Cheltenham | Free | |
| 07 ene 2016 | Oxford | Luton | Free | |
| - | Rotherham | Oxford | N/A | |
| - | Oxford | Rotherham | N/A | |
| 10 may 2012 | Rotherham | Oxford | Loan |
J. Mullins career history shows progression across clubs and competitions, including club timeline, national team appearances and overall career totals.