Berchall, John
Current rating: 1463
Record: 3-5-1
| Grand Prix Nashville 2010 (SOM limited) | starting rating: 1501 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 135 | Peck, Cody (1463) | Lost 0-2 | -191482 |
| 2sealed | 223 | Ezernack, Johnathon (1429) | Draw 1-1 | -11481 |
| 3sealed | 275 | Ray, William (1484) | Lost 1-2 | -181463 |
| average opponent: 1459record: 0-2-1 | new rating: 1463 | |||
| Grand Prix Washington DC 2010 (ROE standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 748 | Park, Sean (1500) | Lost 1-2 | -181482 |
| 2standard | 859 | Gagliardi, Bill (1484) | Won 2-0 | +181500 |
| 3standard | 908 | Suppes, Graeme (1500) | Won 2-1 | +181518 |
| 4standard | 786 | Holmes, Evan (1454) | Lost 1-2 | -191499 |
| 5standard | 941 | Serignese, Paul (1611) | Won 2-0 | +201519 |
| 6standard | 838 | Elfering, Brian (1522) | Lost 0-2 | -181501 |
| average opponent: 1512record: 3-3 | new rating: 1501 | |||