Clark, Justin
Current rating: 1452
Record: 11-14
| Grand Prix Oakland 2019 (modern) | starting rating: 1484 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 337 | Stafford, Cam (1504) | Lost 0-2 | -181466 |
| 2modern | 438 | Piterman, Konstantine (1482) | Won 2-0 | +191485 |
| 3modern | 380 | Hubbard, John (1479) | Lost 1-2 | -181467 |
| 4modern | 501 | Ahlbach, Connor (1546) | Won 2-1 | +191486 |
| 5modern | 331 | Parker, Kevin (1567) | Lost 1-2 | -161470 |
| 6modern | 359 | Etelson, Liam (1481) | Lost 1-2 | -181452 |
| top | average opponent: 1510record: 2-4 | new rating: 1452 | ||
| Grand Prix Pittsburgh 2018 (DOM standard) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 239 | Costa, Michael (1500) | Won 2-0 | +181500 |
| 2standard | 174 | Bashir, Michael (1570) | Lost 0-2 | -171483 |
| 3standard | 270 | Willoughby, Noah (1502) | Won 2-0 | +191502 |
| 4standard | 221 | Holbrook, Paul (1518) | Lost 1-2 | -181484 |
| 5standard | 330 | Cirasuolo, Jeffrey (1466) | Lost 0-2 | -181466 |
| 6standard | 325 | Schrecengost, Dominic (1469) | Lost 0-2 | -181448 |
| 7standard | 305 | Hurd, Jacob (1467) | Won 2-1 | +181466 |
| 8standard | 257 | Newman, D.J. (1467) | Won 2-1 | +181484 |
| top | average opponent: 1495record: 4-4 | new rating: 1484 | ||
| Grand Prix Las Vegas 2018 (limited) (DOM limited) | starting rating: 1516 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 107 | Baily, Aric (1597) | Lost 1-2 | -171499 |
| 2sealed | 493 | Nielsen, Thomas Sellberg (1513) | Lost 0-2 | -171482 |
| top | average opponent: 1555record: 0-2 | new rating: 1482 | ||
| Grand Prix San Jose 2017 (AER limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 463 | Blume, Alex (1500) | Won 2-0 | +181518 |
| 2sealed | 229 | Chambers, Colron (1291) | Lost 1-2 | -221496 |
| 3sealed | 448 | Pospischil, Mark (1500) | Won 2-0 | +181514 |
| 4sealed | 230 | Blake, Paul (1460) | Won 2-0 | +171531 |
| 5sealed | 121 | Thornally, Bryan (1597) | Lost 1-2 | -171514 |
| 6sealed | 448 | Hernandez, Steven (1523) | Lost 0-2 | -181496 |
| 7sealed | 598 | Howard, George (1621) | Won 2-1 | +211517 |
| 8sealed | 453 | Hein, Benjamin (1526) | Lost 1-2 | -181499 |
| 9sealed | 408 | Padilla, Jacob (1454) | Won 2-0 | +171516 |
| top | average opponent: 1497record: 5-4 | new rating: 1516 | ||