Szamborski, Jeff
Current rating: 1501
Record: 10-10
| Grand Prix Salt Lake City 2012 (DKA standard) | starting rating: 1520 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 107 | Houk, Brandon (1500) | Lost 0-2 | -191501 |
| 2standard | 433 | Kiefer, Michael (1482) | Won 2-1 | +181519 |
| 3standard | 235 | Siegel, Virgil (1500) | Lost 1-2 | -181501 |
| top | average opponent: 1494record: 1-2 | new rating: 1501 | ||
| Grand Prix Kansas City 2003 (MRD limited) | starting rating: 1541 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 67 | Faulkner, Bryce (1466) | Lost 0-2 | -191522 |
| 2sealed | 151 | Schmidt, Dan (1449) | Lost 0-2 | -201502 |
| 3sealed | 183 | Miller, Christopher (1464) | Won 2-0 | +181520 |
| top | average opponent: 1460record: 1-2 | new rating: 1520 | ||
| Grand Prix Cleveland 2002 (Odyssey block) | starting rating: 1463 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 118 | DeSanto, Chris (1500) | Won 2-1 | +181481 |
| 2block | 118 | Betten, Jeff (1518) | Won 2-1 | +191500 |
| 3block | 67 | Rodriguez, Jeffrey (1536) | Won 2-1 | +191519 |
| 4block | 46 | Honea, John (1536) | Lost 0-2 | -181501 |
| 5block | 56 | Pollock, Elijah (1572) | Won 2-1 | +191520 |
| 6block | 26 | Miller, Brandon (1540) | Lost 0-2 | -171503 |
| 7block | 95 | Phillips, Paul (1538) | Won 2-1 | +181521 |
| 8block | 55 | Petersen, David (1631) | Won 2-0 | +201541 |
| top | average opponent: 1546record: 6-2 | new rating: 1541 | ||
| Grand Prix Milwaukee 2002 (TOR standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 31 | Walter, Ben (1500) | Lost 1-2 | -181482 |
| 2standard | 212 | Gragg, John (1448) | Lost 0-2 | -191463 |
| 3standard | 290 | Heisler, Greg (1464) | Won 2-1 | +181481 |
| 4standard | 245 | Pehlke, John (1465) | Lost 0-2 | -181463 |
| 5standard | 241 | Williams, Nick (1464) | Lost 0-2 | -181445 |
| 6standard | 204 | Free, Curtis (1413) | Won 2-0 | +181463 |
| top | average opponent: 1459record: 2-4 | new rating: 1463 | ||