Brennan, Patrick
Current rating: 1360
| Grand Prix Hartford 2018 (modern) | starting rating: 1398 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 344 | White, Jeffrey (1500) | Lost 0-2 | -161382 |
| 3modern | 425 | Chagnon, Joseph (1740) | Lost 1-2 | -121370 |
| 4modern | 617 | Ira, Mac (1462) | Lost 1-2 | -161354 |
| 5modern | 758 | Neleber, Shawn (1464) | Lost 1-2 | -161338 |
| 6modern | 673 | Tsukayama, Ty (1446) | Won 2-1 | +201358 |
| 7modern | 561 | Weaver, Bradley (1450) | Won 2-1 | +191377 |
| 8modern | 415 | Plaza, Andrew (1414) | Lost 1-2 | -171360 |
| top | average opponent: 1497record: 2-5 | new rating: 1360 | ||
| Grand Prix Louisville 2017 (legacy) | starting rating: 1467 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 488 | Donisch, Zach (1485) | Lost 0-2 | -171450 |
| 2legacy | 795 | Anderson, Will (1447) | Lost 0-2 | -181432 |
| 3legacy | 979 | Skulski, Steve (1464) | Lost 0-2 | -181414 |
| 4legacy | 1020 | Forsyth, John (1517) | Lost 0-2 | -161398 |
| top | average opponent: 1478record: 0-4 | new rating: 1398 | ||
| Grand Prix Miami 2013 (DGM standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 221 | Mathos, Paul (1500) | Won 2-1 | +181518 |
| 2standard | 236 | Pardo, Alex V (1582) | Lost 0-2 | -171501 |
| 3standard | 438 | Michael, Matthew (1493) | Lost 1-2 | -181483 |
| 4standard | 443 | DiDomenico, Vincent (1480) | Won 2-1 | +181501 |
| 5standard | 439 | Chatfield, Lawrence (1627) | Lost 0-2 | -161485 |
| 6standard | 384 | Rivera, Dalton (1484) | Lost 1-2 | -181467 |
| top | average opponent: 1528record: 2-4 | new rating: 1467 | ||