Lorentzen, Corey
Current rating: 1511
| Grand Prix New Jersey 2019 (RNA limited) | starting rating: 1525 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 327 | Yin, Brian (1689) | Won 2-1 | +211546 |
| 2sealed | 75 | Limber, Jerry (1557) | Lost 0-2 | -171529 |
| 3sealed | 375 | Beaty, Aaren (1577) | Lost 0-2 | -181511 |
| 4sealed | 507 | Hall, Rex (1534) | Won 2-1 | +191530 |
| 5sealed | 342 | Phelps, Paul (1467) | Lost 0-2 | -191511 |
| top | average opponent: 1565record: 2-3 | new rating: 1511 | ||
| Grand Prix Providence 2016 (KLD standard) | starting rating: 1503 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 133 | Kerr, David (1614) | Lost 0-2 | -161487 |
| 2standard | 331 | Delven, Randy (1464) | Won 2-0 | +181505 |
| 3standard | 321 | Haass, David (1572) | Lost 0-2 | -171488 |
| 4standard | 516 | Haugh, Joseph (1503) | Won 2-1 | +181506 |
| 5standard | 367 | Harding, Ian (1507) | Lost 1-2 | -181488 |
| 6standard | 370 | McKinney, Adam (1450) | Won 2-0 | +171505 |
| 7standard | 349 | DeJoy, Joseph (1673) | Won 2-0 | +211526 |
| 8standard | 305 | Arsenault, Aaron (1524) | Won 2-0 | +181544 |
| 9standard | 197 | Gago, Daniel (1492) | Lost 0-2 | -191525 |
| top | average opponent: 1533record: 5-4 | new rating: 1525 | ||
| Grand Prix Atlantic City 2015 (DTK limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 57 | Spellman, Bryan (1523) | Won 2-0 | +181518 |
| 2sealed | 2 | Juliano, Christopher (1513) | Lost 1-2 | -181500 |
| 3sealed | 434 | Annino, Rich (1447) | Won 2-1 | +171517 |
| 4sealed | 422 | Kothari, Vipul (1621) | Lost 1-2 | -161501 |
| 5sealed | 386 | Corley, Michael (1530) | Won 2-0 | +191520 |
| 6sealed | 271 | Velarde, Wendell (1586) | Lost 1-2 | -171503 |
| top | average opponent: 1537record: 3-3 | new rating: 1503 | ||