Grofsick, Michael
Current rating: 1452
Record: 5-9
| Grand Prix New Jersey 2020 (THB limited) | starting rating: 1428 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 262 | Cudkowicz, Daniel (1620) | Lost 1-2 | -151413 |
| 4sealed | 273 | Maurer, Ian (1462) | Won 2-0 | +191432 |
| 5sealed | 101 | Divine, Chad (1503) | Lost 1-2 | -171415 |
| 6sealed | 405 | Heine, Jack (1648) | Won 2-0 | +231438 |
| 7sealed | 146 | Lee, Robert 724 (1962) | Lost 0-2 | -101428 |
| 8sealed | 247 | Brummett, Chris (1741) | Won 2-1 | +241452 |
| average opponent: 1656record: 3-3 | new rating: 1452 | |||
| Grand Prix New Jersey 2019 (RNA limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 96 | Song, Chaoran (1501) | Lost 1-2 | -181482 |
| 2sealed | 378 | Richey, Henry (1480) | Won 2-1 | +181500 |
| 3sealed | 370 | Sinha, Gautam (1502) | Lost 0-2 | -181482 |
| 4sealed | 555 | Bernstein, Robert (1484) | Lost 1-2 | -181464 |
| 5sealed | 565 | Cox, Paul (1448) | Lost 0-2 | -181446 |
| 6sealed | 493 | Viirand, Kalev (1444) | Lost 0-2 | -181428 |
| 7sealed | 408 | Velez, Javier (1411) | Won 2-0 | +171445 |
| 8sealed | 323 | Dai, Huaxin (1464) | Lost 1-2 | -171428 |
| average opponent: 1467record: 2-6 | new rating: 1428 | |||