Ian Williamson
Primary tabs
| Player ID | 11813 |
| First Name | Ian |
| Last Name | Williamson |
| Sex | M |
| User ID | 0 |
| Club (used in grading individual event) | Crusaders Blackburn |
| DOB | **** |
| Player lists | Crusaders Blackburn,Great Harwood,Hamilton Cup |
| Local Rating | |
| Local Rapid Rating | |
| FIDE Code | 434108 |
| FIDE Federation | |
| ECF Grading Code | 279651L |
| Membership Number (entered manually) | |
| Membership Number (from grading list) | |
| ECF Standard OTB August | 1683 |
| ECF Standard OTB September | 1683 |
| ECF Standard OTB January | 1683C |
| ECF Standard OTB Latest | 1683K |