| Player ID | 5592 |
| First Name | Derek |
| Last Name | Cosens |
| Sex | M |
| User ID | 0 |
| Club (used in grading individual event) | Hastings & St Leonards |
| DOB | **** |
| Player lists | Hastings & St Leonar |
| Local Rating | 0 |
| Local Rapid Rating | 110 |
| FIDE Code | 0 |
| FIDE Federation | |
| ECF Grading Code | 247569J |
| Membership Number (entered manually) | |
| Membership Number (from grading list) | ME004208 |
| ECF Rapid OTB August | 1578 |
| ECF Standard OTB August | 1705 |
| ECF Rapid OTB September | 1578 |
| ECF Standard OTB September | 1705 |
| ECF Standard OTB January | 1705D |
| ECF Rapid OTB January | 0* |
| ECF Standard OTB Latest | 1647K |
| ECF Rapid OTB Latest | 1578K |
