Roberts, Cody
Current rating: 1476
| Grand Prix Minneapolis 2019 (modern) | starting rating: 1513 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 62 | Petrick, Edric (1432) | Won 2-0 | +171530 |
| 2modern | 35 | Bearmon, Michael (1519) | Lost 1-2 | -181512 |
| 3modern | 329 | Simons, Sidney (1525) | Lost 0-2 | -181494 |
| 4modern | 298 | Schultz, Justin 4777 (1519) | Lost 1-2 | -181476 |
| top | average opponent: 1499record: 1-3 | new rating: 1476 | ||
| Grand Prix Houston 2013 (DGM limited) | starting rating: 1463 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 263 | Fulgium, James (1607) | Lost 0-2 | -151448 |
| 2sealed | 337 | McCrae, James (1482) | Won 2-0 | +181466 |
| 3sealed | 298 | Fain, Kinny (1629) | Won 2-0 | +211487 |
| 4sealed | 158 | Truong, Andy (1497) | Won 2-0 | +181505 |
| 5sealed | 248 | Henkes, Ben (1502) | Lost 0-2 | -181487 |
| 6sealed | 195 | Imaizumi, Riku (1520) | Won 2-0 | +191506 |
| 7sealed | 142 | Vangdal, Ida (1607) | Won 2-1 | +201526 |
| 8sealed | 124 | Rietzl, Paul (1851) | Lost 0-2 | -131513 |
| top | average opponent: 1587record: 5-3 | new rating: 1513 | ||
| Grand Prix San Antonio 2012 (RTR standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 91 | Herrera, Procopio (1458) | Lost 1-2 | -191481 |
| 3standard | 159 | Edwards, Kyle (1463) | Won 2-1 | +181499 |
| 4standard | 189 | Liang, Mike (1549) | Lost 1-2 | -171482 |
| 5standard | 291 | Davila, Gilbert (1433) | Lost 1-2 | -191463 |
| top | average opponent: 1476record: 1-3 | new rating: 1463 | ||