| Temporada | Equipo | Competición | PJ | G | A | Nota | ||
|---|---|---|---|---|---|---|---|---|
| 2025/2026 | Burton | FA Cup | 2 | 1 | 0 | 0 | 0 | 7.3 |
| 2025/2026 | Burton | EFL Trophy | 1 | 0 | 0 | 0 | 0 | 5.9 |
| 2024/2025 | Lincoln | EFL Trophy | 2 | 1 | 1 | 0 | 0 | 7.5 |
| 2024/2025 | Lincoln | FA Cup | 1 | 0 | 0 | 0 | 0 | 7.0 |
| 2024/2025 | Lincoln | EFL Cup | 1 | 0 | 0 | 0 | 0 | 6.9 |
| 2023/2024 | Morecambe | FA Cup | 2 | 0 | 1 | 1 | 0 | – |
| 2023/2024 | Morecambe | EFL Trophy | 2 | 0 | 0 | 0 | 0 | 7.0 |
| 2023/2024 | Morecambe | EFL Cup | 1 | 0 | 0 | 0 | 0 | 6.9 |
| 2022/2023 | Eastleigh | FA Trophy | 1 | 1 | 0 | 0 | 0 | – |
| 2022/2023 | Eastleigh | FA Cup | 1 | 0 | 0 | 0 | 0 | – |
| 2021/2022 | Watford U23 | Premier League Cup | 2 | 2 | 0 | 0 | 0 | – |
| Total | 16 | 5 | 2 | 1 | 0 | – | ||
| Fecha | Desde | Hacia | Tipo | |
|---|---|---|---|---|
| - | Burton | Lincoln | Return from loan | |
| 07 ene 2025 | Lincoln | Burton | Loan | |
| - | Burton | Lincoln | Return from loan | |
| 01 oct 2025 | Lincoln | Burton | Loan | |
| 07 ene 2024 | Morecambe | Lincoln | Free agent | |
| 07 ene 2023 | Watford | Morecambe | Free agent | |
| - | Eastleigh | Watford | Return from loan | |
| - | Watford | Eastleigh | Loan | |
| 01 ago 2023 | Eastleigh | Watford | Return from loan | |
| 08 mar 2022 | Watford | Eastleigh | Loan | |
| - | Bohemians | Watford | Return from loan | |
| - | Watford | Bohemians | Loan |
J. McKiernan John career history shows progression across clubs and competitions, including club timeline, national team appearances and overall career totals.