DeVoll, Harrison
Current rating: 1466
Record: 7-10
| Grand Prix Las Vegas 2018 (modern) (modern) | starting rating: 1411 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 674 | Peek, Travis (1500) | Won 2-0 | +201431 |
| 2modern | 81 | Chackonal, Vipin (1744) | Won 2-0 | +241455 |
| 3modern | 267 | Baker, Alec (1494) | Lost 0-2 | -181437 |
| 4modern | 432 | Holmes, Jordan (1660) | Lost 1-2 | -141423 |
| 5modern | 527 | Piniol, Glenn (1453) | Won 2-0 | +191442 |
| 6modern | 574 | Mihu, Jonathon (1643) | Won 2-0 | +211463 |
| 7modern | 377 | Vollman, Joshua (1534) | Lost 0-2 | -161447 |
| 8modern | 386 | Russell, Tyler (1492) | Won 2-0 | +191466 |
| average opponent: 1565record: 5-3 | new rating: 1466 | |||
| Grand Prix Washington DC 2017 (HOU standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 345 | Brown, Paul (1449) | Lost 1-2 | -191481 |
| 2standard | 360 | Bowman, Thomas (1463) | Lost 1-2 | -181463 |
| 3standard | 721 | Williams, James (1624) | Lost 1-2 | -151448 |
| 4standard | 734 | Martinez, Joe (1446) | Lost 1-2 | -181430 |
| 5standard | 729 | Bettios, Alex (1428) | Won 2-1 | +181448 |
| 6standard | 652 | Campbell, James (1428) | Lost 0-2 | -191429 |
| 7standard | 610 | Lopez, Marcus (1425) | Lost 0-2 | -181411 |
| 8standard | 536 | Quinn, Conor (1444) | Won 2-0 | +191430 |
| 9standard | 73 | Hunkapiller, Charles (1412) | Lost 0-2 | -191411 |
| average opponent: 1458record: 2-7 | new rating: 1411 | |||