O'Dea, Brian
Current rating: 1448
| Grand Prix Boston-Worcester 2014 (modern) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 1103 | Lisac, Chris (1500) | Lost 1-2 | -171447 |
| 2modern | 1080 | Miner, Devin (1482) | Won 2-0 | +191466 |
| 3modern | 1147 | Jenkins, Neil (1500) | Won 2-1 | +181484 |
| 4modern | 962 | Rousseau, Hugo (1458) | Lost 0-2 | -181466 |
| 5modern | 1080 | Mackenzie, Warren (1499) | Lost 0-2 | -181448 |
| top | average opponent: 1488record: 2-3 | new rating: 1448 | ||
| Grand Prix Las Vegas 2013 (MMA limited) | starting rating: 1519 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 1504 | Horng, Kevin (1464) | Lost 1-2 | -191500 |
| 2sealed | 1640 | Owen, Derek (1539) | Lost 0-2 | -171483 |
| 3sealed | 1741 | Yearick, Elijah (1466) | Lost 1-2 | -191464 |
| top | average opponent: 1489record: 0-3 | new rating: 1464 | ||
| Grand Prix Philadelphia 2008 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 196 | Gamble, Eddie (1514) | Lost 0-2 | -181482 |
| 2extended | 336 | Harrison, Jason (1428) | Won 2-1 | +171499 |
| 3extended | 363 | Bhagat, Zohar (1629) | Draw 1-1 | +31502 |
| 4extended | 306 | Wilkins, Johnathan (1500) | Won 2-1 | +181520 |
| 5extended | 219 | Hartzler, Adam B (1501) | Draw 1-1 | -11519 |
| 6extended | 276 | Vodvarka, Jesse (1500) | Won 2-1 | +181537 |
| 7extended | 198 | Dugard, Dave L (1541) | Lost 1-2 | -181519 |
| top | average opponent: 1516record: 3-2-2 | new rating: 1519 | ||