| Player ID | 12138 |
| First Name | Derrick J |
| Last Name | Mason |
| Sex | |
| User ID | 0 |
| DOB | **** |
| Player lists | Shipley,Bak |
| Club | Shipley (8YBF) |
| Local Rating | |
| Local Rapid Rating | |
| FIDE Code | 0 |
| FIDE Federation | |
| ECF Rating Code (links to rating system) | 142721A |
| Membership Number (from rating list) | ME021157 |
| Membership Category | Bronze |
| ECF Standard OTB August | 1457K |
| ECF Rapid OTB August | 1419K |
| ECF Standard OTB September | 1457K |
| ECF Rapid OTB September | 1419K |
| ECF Standard OTB September Old | 1431K |
| ECF Rapid OTB January | 1419K |
| ECF Standard OTB January | 1409K |
| ECF Rapid OTB Monthly | 1419K |
| ECF Standard OTB Monthly | 1430K |
| ECF Rapid OTB Latest | 1430K |
| ECF Standard OTB Latest | 1430K |
