Powell, Sean
Current rating: 1496
Record: 6-6
| Grand Prix Charlotte 2015 (modern) | starting rating: 1519 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 233 | Patel, Samit (1500) | Won 2-0 | +181537 |
| 2modern | 304 | Buckland, Jack (1518) | Won 2-1 | +171554 |
| 3modern | 241 | Ritenour, Jameson (1405) | Lost 1-2 | -201534 |
| 4modern | 436 | Harris, Austin (1453) | Lost 0-2 | -201514 |
| 5modern | 541 | Filipiak, Chris (1503) | Lost 1-2 | -181496 |
| average opponent: 1476record: 2-3 | new rating: 1496 | |||
| Grand Prix Richmond 2014 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 256 | Seiber, Alex (1500) | Lost 1-2 | -181482 |
| 2modern | 463 | McMillin, Jared (1502) | Won 2-1 | +181500 |
| 3modern | 421 | Gendron, Jason (1497) | Won 2-1 | +181518 |
| 4modern | 354 | Murphy, Jon (1569) | Lost 0-2 | -171501 |
| 5modern | 499 | Zellner, Robert (1498) | Won 2-0 | +181519 |
| 6modern | 333 | Pekar, George (1498) | Won 2-0 | +181537 |
| 7modern | 281 | Romanoff, Nathan (1549) | Lost 1-2 | -181519 |
| average opponent: 1516record: 4-3 | new rating: 1519 | |||