Wolbert Sr., John
Current rating: 1487
Record: 6-7
| Grand Prix Detroit 2005 (BOK limited) | starting rating: 1465 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 28 | Shalala, Donald (1500) | Won 2-1 | +181483 |
| 2sealed | 63 | Persello-Seefeld, Glenn (1535) | Lost 1-2 | -171466 |
| 3sealed | 160 | Beeton, James (1534) | Lost 0-2 | -171449 |
| 4sealed | 192 | Gosnell, Eric (1484) | Won 2-0 | +191468 |
| 5sealed | 155 | Plouffe, Jonathan E (1500) | Lost 1-2 | -171451 |
| 6sealed | 150 | Blake, BD (1452) | Won 2-0 | +181469 |
| 7sealed | 107 | Grinnell, Joshua (1503) | Won 2-0 | +181487 |
| average opponent: 1501record: 4-3 | new rating: 1487 | |||
| Grand Prix Milwaukee 2002 (TOR standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 54 | Early, Richard (1500) | Won 2-1 | +181518 |
| 2standard | 97 | Weber, Jordan (1518) | Lost 0-2 | -181500 |
| 3standard | 163 | Palmer, Kyle 2 (1500) | Lost 0-2 | -181482 |
| 4standard | 265 | Warren, Chris (1516) | Lost 1-2 | -171465 |
| 5standard | 246 | Yamada, Libby (1464) | Won 2-1 | +181483 |
| 6standard | 195 | McElhaney, Andrew (1486) | Lost 1-2 | -181465 |
| average opponent: 1497record: 2-4 | new rating: 1465 | |||