Sedberry, Charles
Current rating: 1490
| Grand Prix Tampa Bay 2019 (modern) | starting rating: 1508 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 134 | Laskowski, Steven (1517) | Won 2-1 | +181526 |
| 3modern | 60 | Findlay, Bill (1510) | Lost 0-2 | -181508 |
| 4modern | 186 | Cole, Bodie (1519) | Draw 1-1 | 01508 |
| 5modern | 204 | Foltz, Jonathan (1503) | Lost 1-2 | -181490 |
| top | average opponent: 1512record: 1-2-1 | new rating: 1490 | ||
| Grand Prix Memphis 2019 (RNA standard) | starting rating: 1486 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 44 | Disney, Justis (1598) | Lost 0-2 | -161470 |
| 2standard | 249 | Barber, Jacob (1465) | Won 2-1 | +181488 |
| 3standard | 381 | Linkinhoker, Michael (1485) | Lost 1-2 | -181470 |
| 4standard | 417 | Richardet, Nathan (1481) | Won 2-0 | +181488 |
| 5standard | 318 | Henneke, Sarah (1497) | Won 2-0 | +191507 |
| 6standard | 262 | Pappas, Ethan (1554) | Won 2-1 | +181525 |
| 7standard | 89 | Foreman, Matt (1538) | Lost 0-2 | -171508 |
| top | average opponent: 1517record: 4-3 | new rating: 1508 | ||
| Grand Prix Orlando 2018 (M19 standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 217 | Kerkman, Michael (1491) | Lost 1-2 | -181482 |
| 4standard | 294 | Mushtaq, Javed (1474) | Won 2-0 | +181500 |
| 5standard | 208 | Pierce, Stephen (1635) | Lost 1-2 | -161484 |
| 6standard | 167 | Newton, Clifford (1350) | Won 2-0 | +161500 |
| 7standard | 195 | Miller, Blake (1763) | Lost 1-2 | -141486 |
| top | average opponent: 1543record: 2-3 | new rating: 1486 | ||