| Player ID | 18788 |
| First Name | Jon EW |
| Last Name | Blackburn |
| Sex | M |
| User ID | 0 |
| Club (used in grading individual event) | Cheddleton & Leek |
| DOB | **** |
| Local Rating | |
| Local Rapid Rating | |
| FIDE Code | 429228 |
| FIDE Federation | |
| ECF Grading Code | 178103A |
| Membership Number (entered manually) | |
| Membership Number (from grading list) | |
| ECF Standard Old | 144A |
| ECF Standard August | 139A |
| ECF Standard Pub | 140A |
| ECF Rapid August | 138E |
| ECF Rapid Pub | 138E |
| ECF Standard January | 144A |
| ECF Rapid January | 138E |
| ECF Monthly Standard | 1743 |
| ECF Monthly Rapid | 1735 |
| ECF Monthly July S | 1743 |
| ECF Monthly July R | 1735 |
