Hartley, Samuel
Current rating: 1540
Record: 9-7
| Grand Prix Portland 2018 (modern) | starting rating: 1508 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 259 | Black, Joseph (1500) | Lost 0-2 | -181490 |
| 2modern | 697 | Olgado, Joseph (1456) | Won 2-1 | +171507 |
| 3modern | 717 | Vinn, Mike (1499) | Won 2-0 | +181525 |
| 4modern | 234 | Aalvik, Zakory (1523) | Lost 1-2 | -181507 |
| 5modern | 584 | Wise, Sam (1476) | Won 2-0 | +181525 |
| 6modern | 450 | Sharp, Jeff (1429) | Won 2-0 | +161541 |
| 7modern | 209 | Pham, Parker (1488) | Won 2-1 | +171558 |
| 8modern | 115 | Mick, Joel (1585) | Lost 1-2 | -181540 |
| average opponent: 1494record: 5-3 | new rating: 1540 | |||
| Grand Prix Omaha 2017 (AKH standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 89 | Raymer, Charles (1464) | Lost 0-2 | -191481 |
| 2standard | 225 | Groves, Silas (1488) | Won 2-0 | +181499 |
| 3standard | 178 | Senrick, Charles (1500) | Won 2-0 | +181517 |
| 4standard | 131 | Gasior, Isaac (1518) | Won 2-1 | +181535 |
| 5standard | 166 | Miles, Aaron (1620) | Won 2-0 | +201555 |
| 6standard | 86 | Gauker, Dylan (1684) | Lost 1-2 | -161539 |
| 7standard | 102 | Radmard, Amir (1740) | Lost 0-2 | -141525 |
| 8standard | 158 | Russell, Joshua (1584) | Lost 0-2 | -171508 |
| average opponent: 1575record: 4-4 | new rating: 1508 | |||