Hamann, Brian
Current rating: 1460
Record: 11-15
| Grand Prix Pittsburgh 2015 (modern) | starting rating: 1427 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 905 | McCord, Alec (1557) | Won 2-0 | +201447 |
| 2modern | 64 | Ruckman, Adam (1518) | Lost 1-2 | -171430 |
| 3modern | 791 | Sturckler, Andrew (1481) | Won 2-1 | +191449 |
| 4modern | 591 | Rutkowski, Alexander (1497) | Won 2-0 | +191468 |
| 5modern | 330 | Negri, Kazu (1672) | Won 2-0 | +221490 |
| 6modern | 187 | Aintrazi, Ali (1755) | Lost 1-2 | -131477 |
| 7modern | 295 | Barge, Carter (1567) | Lost 0-2 | -171460 |
| top | average opponent: 1578record: 4-3 | new rating: 1460 | ||
| Grand Prix Cincinnati 2014 (BNG standard) | starting rating: 1441 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 571 | Lo, Shong (1567) | Lost 0-2 | -151426 |
| 2standard | 700 | Featheringham, Austin (1481) | Won 2-1 | +191445 |
| 3standard | 497 | Kastning, Erik (1468) | Won 2-1 | +181463 |
| 4standard | 479 | O'Brien, James (1500) | Lost 0-2 | -171446 |
| 5standard | 443 | Bower, James (1381) | Lost 1-2 | -191427 |
| top | average opponent: 1480record: 2-3 | new rating: 1427 | ||
| Grand Prix Richmond 2014 (modern) | starting rating: 1449 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 540 | Burrows, Timothy (1500) | Lost 1-2 | -171432 |
| 2modern | 522 | Velzy, Jonathan (1482) | Won 2-1 | +191451 |
| 3modern | 561 | Miklos, Brian (1500) | Won 2-1 | +191470 |
| 4modern | 349 | Lucy, J. Sawyer (1851) | Lost 1-2 | -111459 |
| 5modern | 372 | Conley, Kieran (1500) | Lost 1-2 | -181441 |
| top | average opponent: 1566record: 2-3 | new rating: 1441 | ||
| Grand Prix Charlotte 2013 (GTC limited) | starting rating: 1503 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 770 | HARRINGTON, TIFFANY (1500) | Lost 1-2 | -181485 |
| 2sealed | 1050 | Bastecki, Alex (1505) | Lost 1-2 | -181467 |
| 3sealed | 1192 | Moore, Shawn (1464) | Lost 0-2 | -181449 |
| top | average opponent: 1490record: 0-3 | new rating: 1449 | ||
| Grand Prix Columbus 2010 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 173 | Martin, Spencer (1482) | Lost 0-2 | -181482 |
| 2legacy | 260 | Smith, Brian S (1482) | Won 2-0 | +181500 |
| 3legacy | 123 | Wootten, Ben (1499) | Won 2-1 | +181518 |
| 4legacy | 126 | Webster, Billy (1517) | Lost 0-2 | -181500 |
| 5legacy | 198 | Jacobson, Josh (1638) | Won 2-1 | +201520 |
| 6legacy | 154 | Cline, Matthew (1571) | Lost 0-2 | -171503 |
| top | average opponent: 1532record: 3-3 | new rating: 1503 | ||