Roulston, Cody
Current rating: 1488
Record: 7-8-2
| Grand Prix Brisbane 2019 (ELD standard) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 151 | Thomas, Jake (1471) | Won 2-1 | +171499 |
| 2standard | 21 | Monika, Freeman (1502) | Draw 1-1 | 01499 |
| 3standard | 89 | Kopp, Joshua (1491) | Draw 1-1 | 01499 |
| 4standard | 129 | Odsey, Victor (1581) | Lost 0-2 | -161483 |
| 5standard | 159 | Farn, Robert (1488) | Lost 1-2 | -181465 |
| 6standard | 134 | Forster, Joey (1412) | Won 2-0 | +171482 |
| 7standard | 100 | McGucken, Dave (1460) | Won 2-0 | +171499 |
| 8standard | 72 | Zhang, James (1878) | Lost 0-2 | -111488 |
| average opponent: 1536record: 3-3-2 | new rating: 1488 | |||
| Grand Prix Brisbane 2017 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 167 | McLachlan, Cameron (1500) | Lost 0-2 | -181482 |
| 2modern | 319 | Amy, Adam (1501) | Won 2-0 | +181500 |
| 3modern | 341 | Yang, Phillip (1450) | Lost 0-2 | -191481 |
| 4modern | 1021 | Zhu, Yuxuan (1454) | Lost 1-2 | -181463 |
| 5modern | 418 | Gardner, Leroy (1462) | Lost 0-2 | -181445 |
| 6modern | 395 | Haddow, Liam (1447) | Won 2-0 | +181463 |
| 7modern | 349 | Lowe, Tristan (1550) | Lost 0-2 | -161447 |
| 8modern | 298 | King, Alex [AUS] (1445) | Won 2-0 | +181465 |
| 9modern | 256 | Gao, Ju He (1411) | Won 2-1 | +171482 |
| average opponent: 1469record: 4-5 | new rating: 1482 | |||