Sandomierski, Nathan
Current rating: 1420
| Grand Prix Oklahoma City 2015 (modern) | starting rating: 1473 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 341 | Baros, Zach (1500) | Lost 0-2 | -181455 |
| 2modern | 525 | Crittenden, Scott (1483) | Lost 0-2 | -171438 |
| 3modern | 580 | Parkhurst, Adam (1465) | Lost 0-0 | -181420 |
| top | average opponent: 1483record: 0-3 | new rating: 1420 | ||
| Grand Prix Omaha 2015 (modern) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 351 | Burke, Matt (1464) | Won 2-0 | +181482 |
| 2modern | 215 | Shaffer, Dustin (1464) | Won 2-1 | +171499 |
| 3modern | 138 | Greenleaf, Matthew (1486) | Lost 1-2 | -181481 |
| 4modern | 269 | Foster, Daniel (1587) | Lost 1-2 | -161465 |
| 5modern | 321 | Dubay, David (1524) | Won 2-0 | +191484 |
| 6modern | 275 | Demestrio, Joe (1849) | Lost 1-2 | -111473 |
| top | average opponent: 1562record: 3-3 | new rating: 1473 | ||
| Grand Prix Kansas City 2013 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 46 | Jarvis, Richard (1500) | Won 2-0 | +181518 |
| 2modern | 104 | Kurtz, Chris R (1521) | Won 2-1 | +181536 |
| 3modern | 21 | Batres, Gussy (1518) | Lost 1-2 | -181518 |
| 4modern | 165 | Marschall, Philip (1523) | Lost 1-2 | -181500 |
| 5modern | 337 | Haber, Everett (1497) | Lost 1-2 | -181482 |
| 6modern | 319 | Consolver, Kyle (1482) | Lost 0-2 | -181464 |
| top | average opponent: 1507record: 2-4 | new rating: 1464 | ||