Dean, Griff
Current rating: 1432
| Grand Prix Portland 2018 (modern) | starting rating: 1465 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 606 | McCune, Jake (1440) | Lost 0-2 | -181447 |
| 2modern | 691 | Moreno, Nicholas (1621) | Lost 0-2 | -151432 |
| 3modern | 852 | Zanella, Charlie (1393) | Won 2-1 | +171449 |
| 4modern | 704 | Bracey, Torin (1477) | Lost 1-2 | -171432 |
| top | average opponent: 1483record: 1-3 | new rating: 1432 | ||
| Grand Prix Vancouver 2017 (modern) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 2139 | Boyd, Curtis (1492) | Lost 1-2 | -181464 |
| 2modern | 2580 | Ozcubukcu, Murat (1482) | Won 2-0 | +191483 |
| 3modern | 2448 | Bressler, Benjamin (1498) | Lost 1-2 | -181465 |
| 4modern | 2565 | Godleske, Eli (1483) | Won 2-1 | +181483 |
| 5modern | 2362 | Go, Calvin (1499) | Lost 1-2 | -181465 |
| top | average opponent: 1491record: 2-3 | new rating: 1465 | ||
| Grand Prix Seattle-Tacoma 2015 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 233 | Wen, Henry (1500) | Lost 0-2 | -181482 |
| top | record: 0-1 | new rating: 1482 | ||