Blackburn, Sammy
Current rating: 1424
Record: 5-9
| Grand Prix Columbus 2016 (legacy) | starting rating: 1479 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 465 | Wear, Michael 2 (1500) | Won 2-0 | +181497 |
| 2legacy | 58 | Vincik, Adam (1469) | Lost 0-2 | -191478 |
| 3legacy | 628 | Kumpf, William (1501) | Won 2-1 | +191497 |
| 4legacy | 424 | Hayes, David (1579) | Lost 1-2 | -171480 |
| 5legacy | 693 | Madsen, Michael (1424) | Lost 1-2 | -191461 |
| 6legacy | 692 | Bower, James (1433) | Lost 0-2 | -181443 |
| 7legacy | 647 | McGowan, Bryan (1423) | Lost 0-2 | -191424 |
| average opponent: 1475record: 2-5 | new rating: 1424 | |||
| Grand Prix Detroit 2016 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 239 | Galica, Ryan (1499) | Won 2-0 | +181518 |
| 2modern | 448 | Dowling, Ed (1468) | Lost 1-2 | -191499 |
| 3modern | 591 | Adinolfi, Vincent (1464) | Lost 0-2 | -191480 |
| 4modern | 965 | Isenhoff, Benjamin (1481) | Won 2-1 | +181498 |
| 5modern | 766 | Allotta, Jeff (1510) | Lost 0-2 | -171481 |
| 6modern | 926 | Llanas, Jose (1481) | Won 2-0 | +181499 |
| 7modern | 769 | Asmus, Gilbert (1383) | Lost 0-2 | -201479 |
| average opponent: 1470record: 3-4 | new rating: 1479 | |||