Groot, Justin
Current rating: 1535
Record: 8-6
| Grand Prix Las Vegas 2019 (modern) (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 407 | Wallace, Marcus (1492) | Lost 1-2 | -181482 |
| 2modern | 541 | Zamora, Pedro (1468) | Won 2-0 | +181500 |
| 3modern | 485 | Castagna, Jonathan (1424) | Lost 1-2 | -201480 |
| 4modern | 757 | Munoz, Richard (1371) | Won 2-0 | +161496 |
| 5modern | 1211 | Rinella, Ryan (1406) | Won 2-0 | +171513 |
| 6modern | 422 | Bernett, Evan (1421) | Won 2-0 | +161529 |
| 7modern | 325 | Deakins, Crystal (1469) | Won 2-1 | +171546 |
| 8modern | 140 | McCune, David (1579) | Won 2-1 | +181564 |
| 9modern | 113 | Russell, Tyler (1726) | Lost 0-2 | -151549 |
| 10modern | 2118 | Stout, Andy (1712) | Won 2-1 | +211570 |
| 11modern | 2110 | Tran, Kenwon (1505) | Lost 0-2 | -191551 |
| 12modern | 2112 | Godoy, Juan Ignacio (1494) | Won 2-1 | +171568 |
| 13modern | 2117 | McKay, Sean (1522) | Lost 0-2 | -191549 |
| 14modern | 2120 | [anonymous] | Lost 1-2 | -141535 |
| average opponent: 1524record: 8-6 | new rating: 1535 | |||