| Player ID | 12448 |
| First Name | Jonathan |
| Last Name | Mahony |
| Sex | M |
| User ID | 0 |
| Club (used in grading individual event) | Rose Forgrove |
| DOB | **** |
| Local Rating | |
| Local Rapid Rating | |
| FIDE Code | 447781 |
| FIDE Federation | |
| ECF Grading Code | 276212C |
| Membership Number (entered manually) | |
| Membership Number (from grading list) | |
| ECF Standard Old 3 digit | 0 |
| ECF Rapid Old 3 digit | 0 |
| ECF Rapid OTB Latest | 1758 |
| ECF Standard OTB Latest | 1615 |
| ECF Rapid OTB August | 1758 |
| ECF Standard OTB August | 1615 |
| ECF Rapid OTB September | 1758 |
| ECF Standard OTB September | 1615 |
| FIDE Standard | 0 |
| FIDE Rapid | 0 |
| FIDE Blitz | 0 |
