Hummel, Justin
Current rating: 1426
Record: 14-20
| Grand Prix New Jersey 2019 (RNA limited) | starting rating: 1460 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 314 | Dona, Pietro (1527) | Lost 0-2 | -171443 |
| 2sealed | 400 | Markgraf, Liam (1482) | Lost 0-2 | -171426 |
| top | average opponent: 1505record: 0-2 | new rating: 1426 | ||
| Grand Prix Houston 2010 (extended) | starting rating: 1457 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 193 | Poff, Chris (1502) | Lost 1-2 | -181439 |
| 2extended | 218 | Melter, Joshua (1482) | Won 2-0 | +191458 |
| 3extended | 188 | Deliallisi, Alis (1500) | Won 2-0 | +191477 |
| 4extended | 112 | Kersch, Michael (1519) | Won 2-1 | +191496 |
| 5extended | 66 | Alexander, Stephen (1465) | Lost 1-2 | -191477 |
| 6extended | 109 | Andrus, Seth W (1521) | Lost 1-2 | -171460 |
| top | average opponent: 1498record: 3-3 | new rating: 1460 | ||
| Grand Prix Minneapolis 2009 (ZEN limited) | starting rating: 1452 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 140 | Rodriguez, Patrick M (1500) | Won 2-1 | +191471 |
| 2sealed | 93 | Wong, Christopher k (1518) | Lost 0-2 | -171454 |
| 3sealed | 416 | Brinkman, Jason (1565) | Won 2-1 | +201474 |
| 4sealed | 244 | Baumgardt, Chad (1516) | Lost 1-2 | -171457 |
| top | average opponent: 1525record: 2-2 | new rating: 1457 | ||
| Grand Prix Kansas City 2008 (ALA limited) | starting rating: 1465 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 11 | Cereghino, Linda (1500) | Won 2-0 | +191484 |
| 2sealed | 97 | Rodriguez, Shaun (1518) | Lost 0-2 | -171467 |
| 3sealed | 241 | Gorham, Ernie (1614) | Won 2-1 | +201487 |
| 4sealed | 111 | Woodward, Jonathan (1450) | Lost 1-2 | -181469 |
| 5sealed | 221 | Brewer, Garhett (1549) | Lost 1-2 | -171452 |
| top | average opponent: 1526record: 2-3 | new rating: 1452 | ||
| Grand Prix Indianapolis 2008 (SHM limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 320 | Reese, Dakoda (1500) | Won 2-1 | +181518 |
| 2sealed | 22 | Gapinski, John (1518) | Lost 0-2 | -181500 |
| 3sealed | 411 | Cowles, Mitch (1530) | Lost 0-2 | -171483 |
| 4sealed | 362 | Baker, Charles (1513) | Lost 0-2 | -181465 |
| top | average opponent: 1515record: 1-3 | new rating: 1465 | ||
| Grand Prix Philadelphia 2008 (extended) | starting rating: 1427 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 69 | Elias, Matthew H (1500) | Won 2-0 | +191446 |
| 2extended | 242 | Hartman, Christopher (1548) | Won 2-0 | +201466 |
| 3extended | 163 | Kastel, Chad (1607) | Won 2-1 | +211487 |
| 4extended | 70 | Sadin, Steven (1882) | Lost 1-2 | -111476 |
| 5extended | 90 | Thanakit, Isara (1485) | Won 2-1 | +181494 |
| 6extended | 79 | Xenidis, Demetri N (1538) | Lost 0-2 | -171477 |
| 7extended | 124 | Pallone, Eric P (1603) | Won 2-0 | +201497 |
| 8extended | 82 | Dissinger, Cory (1552) | Won 2-1 | +191516 |
| 9extended | 46 | Black, Samuel (1637) | Lost 0-2 | -161500 |
| top | average opponent: 1595record: 6-3 | new rating: 1500 | ||
| Grand Prix Daytona Beach 2007 (LRW limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 40 | Champion, Benjamin (1500) | Lost 0-2 | -181482 |
| 2sealed | 241 | Sutton, Christopher (1434) | Lost 0-2 | -191463 |
| 3sealed | 262 | Woodbury, Emelyn (1465) | Lost 0-2 | -181445 |
| 4sealed | 282 | Mckay, Daniel J (1445) | Lost 0-2 | -181427 |
| top | average opponent: 1461record: 0-4 | new rating: 1427 | ||