Petrosky, Nicholas
Current rating: 1555
Record: 5-3
| Grand Prix Las Vegas 2019 (modern) (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 332 | Salazar Balvin, Johnathan Santiago (1500) | Won 2-0 | +181518 |
| 2modern | 35 | Kemp, Jonathan (1572) | Lost 1-2 | -171501 |
| 3modern | 409 | Zhao, Aiyun (1498) | Won 2-0 | +181519 |
| 4modern | 433 | Guimaraes, Victor (1584) | Won 2-1 | +191538 |
| 5modern | 152 | Turchansky, Zak (1687) | Won 2-1 | +211559 |
| 6modern | 214 | Green, Paul (1742) | Won 2-0 | +211580 |
| 7modern | 53 | Weinreich, Brian (1825) | Lost 0-2 | -141566 |
| 8modern | 112 | Salvador Arnal, Guillem (1930) | Lost 1-2 | -111555 |
| average opponent: 1667record: 5-3 | new rating: 1555 | |||