Clarke, Justin
Current rating: 1397
| Grand Prix Toronto 2018 (modern) | starting rating: 1459 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 515 | Stahlschmidt-Kah, Isak (1500) | Lost 0-2 | -171442 |
| 2modern | 557 | Carisse, Simon (1551) | Lost 1-2 | -161426 |
| 3modern | 767 | Pretty, Kyle (1464) | Lost 0-2 | -181408 |
| 4modern | 768 | Hynes, Joseph (1423) | Won 2-0 | +191427 |
| 5modern | 682 | McMeekin, Scott (1428) | Won 2-0 | +181445 |
| 6modern | 605 | Sasaki, Yusuke (1713) | Lost 1-2 | -141431 |
| 7modern | 512 | Viersen, Xavier (1465) | Lost 0-2 | -171414 |
| 8modern | 466 | Beacom, Jared (1445) | Lost 0-2 | -171397 |
| top | average opponent: 1499record: 2-6 | new rating: 1397 | ||
| Grand Prix Louisville 2017 (legacy) | starting rating: 1489 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 317 | Hecht, Cody (1500) | Lost 1-2 | -181471 |
| 2legacy | 843 | Angulo, Juanmanuel (1487) | Won 2-0 | +181489 |
| 3legacy | 741 | Owens, Patrick (1571) | Won 2-1 | +201509 |
| 4legacy | 646 | Burnett, Sean (1523) | Lost 1-2 | -181491 |
| 5legacy | 805 | Ehrman, Joseph (1420) | Lost 1-2 | -191472 |
| 6legacy | 814 | Hatchel, Tyler (1775) | Lost 0-2 | -131459 |
| top | average opponent: 1546record: 2-4 | new rating: 1459 | ||
| Grand Prix New Jersey 2014 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 18 | Maftei, Dan (1556) | Won 2-0 | +191519 |
| 2legacy | 171 | Plattenburg, Brian (1467) | Lost 0-2 | -191500 |
| 3legacy | 398 | Hayes, Jeremy (1500) | Won 2-1 | +181518 |
| 4legacy | 163 | Seco, Daniel (1502) | Lost 1-2 | -181500 |
| 5legacy | 310 | Costa, Matthew (1899) | Lost 0-2 | -111489 |
| top | average opponent: 1585record: 2-3 | new rating: 1489 | ||