Marks, Justin
Current rating: 1457
Record: 5-8
| Grand Prix Houston 2016 (OGW standard) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 625 | Shake, Joshua (1500) | Lost 0-2 | -171447 |
| 2standard | 522 | Marin, Adam (1483) | Lost 1-2 | -181429 |
| 3standard | 856 | Yuen, Timothy (1506) | Won 2-0 | +201449 |
| 4standard | 753 | Harris, Adam (1414) | Won 2-1 | +171466 |
| 5standard | 573 | Klomparens, Jadine (1642) | Lost 0-2 | -151451 |
| 6standard | 581 | Parson, Jason (1482) | Won 2-1 | +191470 |
| 7standard | 492 | Melvin, Paul (1727) | Lost 0-2 | -131457 |
| average opponent: 1536record: 3-4 | new rating: 1457 | |||
| Grand Prix San Antonio 2014 (KTK standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 258 | Love, TJ (1500) | Won 2-0 | +181518 |
| 2standard | 5 | Vela, Jeremy (1611) | Lost 0-2 | -161502 |
| 3standard | 428 | Robertson, Max (1498) | Won 2-0 | +181520 |
| 4standard | 286 | Orrmons, Kale (1484) | Lost 0-2 | -191501 |
| 5standard | 251 | Callison, Justin (1500) | Lost 0-2 | -181483 |
| 6standard | 399 | Dearing, Christopher (1440) | Lost 0-2 | -191464 |
| average opponent: 1506record: 2-4 | new rating: 1464 | |||