| Player ID | 9785 |
| First Name | Derek |
| Last Name | Simpson |
| Sex | M |
| User ID | 0 |
| DOB | **** |
| Player lists | Hertfordshire CA |
| Club | Hertfordshire CA (CHET) |
| Local Rating | |
| Local Rapid Rating | |
| FIDE Code | 426482 |
| FIDE Federation | |
| ECF Rating Code (links to rating system) | 288847G |
| Membership Number (from rating list) | ME004225 |
| Membership Category | Gold |
| ECF Standard OTB August | 1735K |
| ECF Standard OTB September | 1735K |
| ECF Standard OTB September Old | 1729K |
| ECF Standard OTB January | 1725K |
| ECF Standard OTB Monthly | 1713K |
| ECF Standard OTB Latest | 1713K |
| FIDE Standard | 1773 |
| FIDE Rapid | 0 |
| FIDE Blitz | 0 |
