Sorrells, Mark
Current rating: 1545
Record: 9-7
| Grand Prix Orlando 2018 (M19 standard) | starting rating: 1522 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 295 | Miller, Matthew (1574) | Won 2-0 | +191541 |
| 2standard | 146 | Phillips, Joel (1561) | Won 2-0 | +181559 |
| 3standard | 200 | Nieves, Tomas (1473) | Won 2-0 | +171576 |
| 4standard | 4 | Giering, Cole (1543) | Won 2-0 | +171593 |
| 5standard | 52 | Funk, Jaelin (1840) | Lost 0-2 | -141579 |
| 6standard | 122 | Harrelson, Douglas (1542) | Lost 0-2 | -181561 |
| 7standard | 172 | Suber, Wes (1695) | Lost 0-2 | -161545 |
| average opponent: 1604record: 4-3 | new rating: 1545 | |||
| Grand Prix Atlanta 2017 (XLN standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 296 | Nodine, Jordan (1500) | Won 2-0 | +181518 |
| 2standard | 251 | Correa, Pedro (1518) | Won 2-0 | +181536 |
| 3standard | 39 | Black, Thomas (1586) | Lost 1-2 | -171519 |
| 4standard | 422 | West, Caitlyn (1519) | Lost 0-2 | -181501 |
| 5standard | 371 | Nguyen, Minh (1601) | Lost 1-2 | -161485 |
| 6standard | 536 | Allison, William (1455) | Won 2-0 | +171502 |
| 7standard | 344 | Lloyd, Kevin (1497) | Won 2-0 | +181520 |
| 8standard | 242 | Bertarioni, Jeremy (1617) | Won 2-0 | +201540 |
| 9standard | 243 | Morriss, Bryan (1538) | Lost 0-2 | -181522 |
| average opponent: 1537record: 5-4 | new rating: 1522 | |||