Grizzard, Preston
Current rating: 1499
Record: 5-5
| Grand Prix Las Vegas 2017 (modern) (modern) | starting rating: 1498 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 636 | Demir, Joel (1500) | Lost 0-2 | -181480 |
| 2modern | 970 | Chu, Michael (1498) | Won 2-0 | +191499 |
| 3modern | 2160 | Parker-Martell, Alisha (1442) | Lost 1-2 | -191480 |
| 4modern | 1272 | Cerletti, Matthew (1483) | Won 2-0 | +181498 |
| 5modern | 1140 | Fabiani, Lino (1532) | Won 2-0 | +181516 |
| 6modern | 870 | Bosnich, Anthony (1551) | Lost 0-2 | -171499 |
| average opponent: 1501record: 3-3 | new rating: 1499 | |||
| Grand Prix Las Vegas 2017 (limited) (AKH limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 283 | Leyba, Andrew (1447) | Won 2-0 | +171517 |
| 2sealed | 367 | Petersen, Ben (1561) | Won 2-1 | +191536 |
| 3sealed | 316 | Chi, Roy (1448) | Lost 1-2 | -201516 |
| 4sealed | 603 | Tran, Saron (1520) | Lost 0-2 | -181498 |
| average opponent: 1494record: 2-2 | new rating: 1498 | |||