O'Connell, Colby
Current rating: 1498
Record: 9-11
| Grand Prix Las Vegas 2019 (limited) (MH1 limited) | starting rating: 1462 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 301 | Nelson, Christopher (1562) | Won 2-0 | +201482 |
| 2sealed | 188 | Banchero-Smith, Neil (1498) | Won 2-1 | +181500 |
| 3sealed | 76 | Lin, Daniel (1791) | Lost 0-2 | -131487 |
| 4sealed | 370 | [anonymous] | Won 2-1 | +171504 |
| 5sealed | 85 | Turchansky, Zak (1692) | Lost 0-2 | -141490 |
| 6sealed | 280 | Nguyen, Minh D (1813) | Won 2-1 | +241514 |
| 7sealed | 250 | Castro Saa, Eduardo (1628) | Lost 0-2 | -161498 |
| top | average opponent: 1632record: 4-3 | new rating: 1498 | ||
| Grand Prix Las Vegas 2017 (modern) (modern) | starting rating: 1488 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 534 | Espinosa, Ivan (1686) | Lost 0-2 | -141474 |
| 4modern | 1007 | Logsdon, Jim (1666) | Won 2-0 | +221496 |
| 5modern | 2138 | Lepper, Lantz (1407) | Lost 1-2 | -201476 |
| 6modern | 756 | Venegas, Fernando (1488) | Won 2-0 | +181494 |
| 7modern | 386 | Genova, Daniel (1533) | Lost 0-2 | -171477 |
| 8modern | 517 | Trunk, Matthew (1653) | Lost 0-2 | -151462 |
| top | average opponent: 1572record: 2-4 | new rating: 1462 | ||
| Grand Prix Las Vegas 2017 (limited) (AKH limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 136 | Rubinstein, Garrett (1382) | Lost 0-2 | -201480 |
| 4sealed | 384 | Langewisch, Topher (1516) | Lost 0-1 | -171463 |
| 5sealed | 593 | Pichardo, Luis (1576) | Lost 0-2 | -161447 |
| 6sealed | 799 | Talayumptewa, Kordell (1485) | Won 2-1 | +181465 |
| 7sealed | 574 | Scharff, Carlo (1558) | Won 2-0 | +201485 |
| 8sealed | 454 | Yeliga, Craig (1513) | Won 2-1 | +181503 |
| 9sealed | 395 | Prinsloo, Theuns (1670) | Lost 1-2 | -151488 |
| top | average opponent: 1529record: 3-4 | new rating: 1488 | ||