Blake, David
Current rating: 1353
| Grand Prix Atlanta 2019 (legacy) | starting rating: 1382 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 278 | Hobbs, Ryan (1500) | Won 2-0 | +201402 |
| 2legacy | 214 | Serrano, Jared (1487) | Lost 0-2 | -161386 |
| 3legacy | 338 | Cook, Keith (1484) | Lost 1-2 | -171369 |
| 4legacy | 431 | Barros, Rodolfo (1445) | Lost 0-2 | -161353 |
| top | average opponent: 1479record: 1-3 | new rating: 1353 | ||
| Grand Prix Atlanta 2018 (modern) | starting rating: 1428 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 131 | Brinkman, Stuart (1580) | Lost 1-2 | -151413 |
| 2modern | 386 | Chapman, Trent (1482) | Lost 0-2 | -171396 |
| 3modern | 665 | Ta, Braden (1525) | Lost 0-2 | -161380 |
| 4modern | 734 | Gellerman, Lionel (1407) | Won 2-0 | +191399 |
| 5modern | 639 | Steele, Jonathan (1463) | Lost 1-2 | -171382 |
| top | average opponent: 1491record: 1-4 | new rating: 1382 | ||
| Grand Prix Orlando 2018 (M19 standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 210 | Golem, Zachary (1500) | Lost 0-2 | -181482 |
| 2standard | 333 | Barboza, Andres (1552) | Lost 0-2 | -171465 |
| 3standard | 475 | Conant, Tony (1470) | Lost 1-2 | -181447 |
| 4standard | 465 | Rivera, Rafael (1364) | Lost 0-2 | -191428 |
| top | average opponent: 1471record: 0-4 | new rating: 1428 | ||