| Player ID | 42704 |
| First Name | J Mark |
| Last Name | O'Neill |
| Sex | M |
| User ID | 0 |
| DOB | **** |
| Player lists | Streatham,Crystal Palace |
| Club | Crystal Palace (7056) |
| Local Rating | |
| Local Rapid Rating | |
| FIDE Code | |
| FIDE Federation | |
| ECF Rating Code (links to rating system) | 141459J |
| Membership Number (from rating list) | ME009702 |
| Membership Category | Bronze |
| ECF Standard OTB August | 1957K |
| ECF Rapid OTB August | 1729P |
| ECF Standard OTB September | 1957K |
| ECF Rapid OTB September | 1729P |
| ECF Standard OTB September Old | 1945K |
| ECF Rapid OTB January | 1729P |
| ECF Standard OTB January | 1970K |
| ECF Rapid OTB Monthly | 1879P |
| ECF Standard OTB Monthly | 1990K |
| ECF Rapid OTB Latest | 1879P |
| ECF Standard OTB Latest | 1990K |
