Stats For Middlesbrough FC Player John Mahoney
| Country: | Wales |
| Position:: | Midfielder |
| Played: | 91 |
| Sub: | 0 |
| Goals: | 2 |
| Yellow Cards: | 0 |
| Red Cards: | 0 |
| Wins: | 31 |
| Defeats: | 32 |
| Draws: | 28 |
Stats By Season
| Season | Appearances | Goals | Yellows | Reds | Clean Sheets |
| 1978-1979 | 44 | 0 | 0 | 0 | 0 |
| 1977-1978 | 47 | 2 | 0 | 0 | 0 |
Likes Playing Against
| Team | Goals |
| Everton | 1 |
| Derby County | 1 |