Jonathan C Grisenthwaite
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| Player ID | 23204 |
| First Name | Jonathan C |
| Last Name | Grisenthwaite |
| Sex | M |
| User ID | 0 |
| DOB | **** |
| Player lists | None |
| Club | Crowborough (8110) |
| Local Rating | |
| Local Rapid Rating | |
| FIDE Code | 0 |
| FIDE Federation | |
| ECF Rating Code (links to rating system) | 304467B |
| Membership Number (from rating list) | ME008108 |
| Membership Category | None |
| ECF Standard OTB September Old | 1435K |