Tuckner, John
Current rating: 1497
Record: 3-3
| Grand Prix Kansas City 2008 (ALA limited) | starting rating: 1518 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 18 | Beckstrom, Tyler (1518) | Won 2-1 | +181536 |
| 2sealed | 46 | Woyak, Ben (1446) | Lost 0-2 | -201516 |
| 3sealed | 236 | Harlan, Thomas (1527) | Lost 1-2 | -171499 |
| 4sealed | 306 | Wilson, Payne (1466) | Won 2-1 | +171516 |
| 5sealed | 228 | Solari, Rafael (1471) | Lost 1-2 | -191497 |
| average opponent: 1486record: 2-3 | new rating: 1497 | |||
| Grand Prix Kansas City 2003 (MRD limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 85 | Thornhill, Chris (1500) | Won 2-1 | +181518 |
| record: 1-0 | new rating: 1518 | |||