| Player ID | 57943 |
| First Name | Ondrej |
| Last Name | Chalupa |
| Sex | M |
| User ID | 0 |
| DOB | **** |
| Player lists | Swinton & Worsley |
| Club | Swinton & Worsley Community (2WRY) |
| Local Rating | 0 |
| Local Rapid Rating | 0 |
| FIDE Code | 0 |
| FIDE Federation | |
| ECF Rating Code (links to rating system) | 345643C |
| Membership Number (from rating list) | ME031407 |
| Membership Category | Silver |
| ECF Standard OTB August | 1787A |
| ECF Standard OTB September | 1785A |
| ECF Standard OTB September Old | 1821K |
| ECF Standard OTB January | 1829A |
| ECF Standard OTB Monthly | 1837A |
| ECF Blitz OTB Latest | 1682P |
| ECF Standard OTB Latest | 1851A |
