| Player ID | 45439 |
| First Name | Derek W |
| Last Name | Hadley |
| Sex | M |
| User ID | 0 |
| DOB | **** |
| Player lists | Greater London Chess |
| Club | Greater London Chess Club (9802) |
| Local Rating | |
| Local Rapid Rating | |
| FIDE Code | |
| FIDE Federation | |
| ECF Rating Code (links to rating system) | 111860C |
| Membership Number (from rating list) | ME004248 |
| Membership Category | Silver |
| ECF Standard OTB August | 1600K |
| ECF Standard OTB September | 1596K |
| ECF Standard OTB September Old | 1641K |
| ECF Standard OTB January | 1591K |
| ECF Standard OTB Monthly | 1598K |
| ECF Standard OTB Latest | 1598K |
