Blackburn, Samuel
Current rating: 1478
| Grand Prix Indianapolis 2016 (modern) | starting rating: 1453 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 456 | Charlton, David (1408) | Won 2-1 | +171470 |
| 2modern | 345 | Lopez, Anthony (1380) | Lost 1-2 | -201450 |
| 3modern | 694 | Huges, Cody (1500) | Won 2-0 | +191469 |
| 4modern | 316 | Matchett, Bill (1489) | Won 2-0 | +191488 |
| 5modern | 314 | Neberman, Michael (1621) | Won 2-1 | +201508 |
| 6modern | 219 | Javed, Alexander (1598) | Lost 0-2 | -161492 |
| 7modern | 220 | Combs, Mike (1551) | Won 2-1 | +191511 |
| 8modern | 288 | Medley, Jacob (1665) | Lost 1-2 | -151496 |
| 9modern | 287 | Miller, Bret (1541) | Lost 0-2 | -181478 |
| top | average opponent: 1528record: 5-4 | new rating: 1478 | ||
| Grand Prix Detroit 2016 (modern) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 564 | Kimble, Richard (1428) | Won 2-0 | +171499 |
| 2modern | 226 | Denstaedt, Geoff (1518) | Lost 0-2 | -181481 |
| 3modern | 879 | Cox, Kenneth (1500) | Won 2-0 | +181499 |
| 4modern | 373 | Johnson, Jon (1845) | Lost 1-2 | -121487 |
| 5modern | 861 | Darow, Jason (1483) | Lost 1-2 | -181469 |
| 6modern | 752 | Bentley, Johnathan (1550) | Lost 1-2 | -161453 |
| top | average opponent: 1554record: 2-4 | new rating: 1453 | ||
| Grand Prix Atlanta 2015 (BFZ limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 281 | Schnake, Abe (1463) | Lost 0-2 | -191481 |
| 2sealed | 621 | Blackwelder, Zachary (1482) | Lost 1-2 | -181463 |
| 3sealed | 890 | Kaim, Dillon (1464) | Won 2-1 | +181481 |
| 4sealed | 687 | Forker, Nicholas (1413) | Won 2-0 | +171498 |
| 5sealed | 532 | Ford, Luke (1548) | Lost 0-2 | -171481 |
| 6sealed | 633 | Russell, Joseph (1486) | Won 2-0 | +181499 |
| 7sealed | 476 | Gardner, Joe (1531) | Lost 1-2 | -171482 |
| top | average opponent: 1484record: 3-4 | new rating: 1482 | ||