Herzberg, Doug
Current rating: 1388
| Grand Prix Atlanta 2019 (legacy) | starting rating: 1415 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 163 | Slack, James (1546) | Lost 0-2 | -161399 |
| 2legacy | 357 | Long, Stephen (1482) | Won 2-1 | +201419 |
| 3legacy | 271 | Clifford, Michael (1699) | Lost 0-2 | -131406 |
| 4legacy | 349 | Burdette, Kendall (1390) | Lost 1-2 | -181388 |
| top | average opponent: 1529record: 1-3 | new rating: 1388 | ||
| Grand Prix Atlanta 2018 (modern) | starting rating: 1447 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 133 | Delape, Christopher (1447) | Lost 1-2 | -181429 |
| 2modern | 389 | Campbell, Joshua (1497) | Won 2-0 | +201449 |
| 3modern | 428 | Elliott, Andrew (1595) | Lost 1-2 | -161433 |
| 4modern | 595 | Sturm, Daniel (1420) | Lost 0-2 | -181415 |
| top | average opponent: 1490record: 1-3 | new rating: 1415 | ||
| Grand Prix Atlanta 2017 (XLN standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 298 | Hale, Jon (1500) | Lost 0-2 | -181482 |
| 2standard | 499 | Hobdy, Marcus (1561) | Won 2-1 | +191501 |
| 3standard | 485 | Axt, Campbell (1500) | Lost 0-2 | -181483 |
| 4standard | 480 | Reinhold, Brad (1482) | Lost 1-2 | -181465 |
| 5standard | 573 | Capps, Nolan (1462) | Lost 1-2 | -181447 |
| top | average opponent: 1501record: 1-4 | new rating: 1447 | ||