Brosnan, Howard
Current rating: 1446
Record: 15-19-3
| Regional Championships Dallas 2023 (pioneer) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 447 | Torres, Ricardo (1482) | Lost 0-2 | -181482 |
| 2pioneer | 448 | Rhodes, Matthew (1482) | Lost 0-2 | -181464 |
| 3pioneer | 447 | Wasburn-Moses, Adam (1473) | Lost 1-2 | -181446 |
| top | average opponent: 1479record: 0-3 | new rating: 1446 | ||
| Regional Championships San Diego 2023 (ONE standard) | starting rating: 1509 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 135 | Mahr, Philip (1322) | Won 2-0 | +151524 |
| 2standard | 138 | Schlom, Christoph (1891) | Lost 1-2 | -121512 |
| 3standard | 161 | Foreman, Matt (1732) | Lost 1-2 | -141498 |
| 4standard | 319 | He, Brandon (1689) | Lost 0-2 | -151483 |
| 5standard | 356 | custer, jonathon (1397) | Won 2-1 | +171500 |
| 6standard | 270 | Zeng, Xuantao (1463) | Lost 0-2 | -191481 |
| 7standard | 306 | Nemeth, Mark (1542) | Won 2-1 | +191500 |
| top | average opponent: 1576record: 3-4 | new rating: 1500 | ||
| Grand Prix Richmond 2017 (AKH limited) | starting rating: 1543 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 109 | Cornely, Raymond (1735) | Lost 1-2 | -141529 |
| 4sealed | 386 | Minium, Michael (1525) | Won 2-0 | +181547 |
| 5sealed | 121 | Murray, Ian (1533) | Lost 1-2 | -191528 |
| 6sealed | 473 | Kirklow, Joe (1449) | Lost 0-2 | -191509 |
| top | average opponent: 1561record: 1-3 | new rating: 1509 | ||
| Grand Prix New Jersey 2017 (std) (AER standard) | starting rating: 1542 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 446 | Frost, Bryan (1500) | Won 2-0 | +181560 |
| 2standard | 106 | Thompson, Robert (1374) | Won 2-0 | +141574 |
| 3standard | 96 | Syed, Zan (1853) | Lost 1-2 | -131561 |
| 4standard | 326 | Wu, Brian (1518) | Lost 0-2 | -181543 |
| 5standard | 456 | DiMaio, JT (1607) | Lost 1-2 | -171526 |
| 6standard | 547 | Moore, Markus (1479) | Won 2-0 | +171543 |
| 7standard | 481 | Peters, Brian (1591) | Lost 1-2 | -171526 |
| 9standard | 370 | Wert, Jackson (1504) | Won 2-0 | +171543 |
| top | average opponent: 1553record: 4-4 | new rating: 1543 | ||
| Grand Prix Pittsburgh 2015 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 702 | Logan, Patrick (1488) | Won 2-0 | +181518 |
| 2modern | 630 | Childs, Dylan (1518) | Won 2-0 | +181536 |
| 3modern | 451 | Metz, Nate (1535) | Won 2-0 | +181554 |
| 4modern | 54 | Brumby, Gene (1689) | Draw 1-1 | +21556 |
| 5modern | 136 | Paulsen, Daniel (1486) | Won 2-0 | +171573 |
| 6modern | 67 | Wechsler, Simon (1751) | Draw 1-1 | +31576 |
| 7modern | 198 | Pethtel, Jeremy (1554) | Won 2-1 | +181594 |
| 8modern | 114 | Pietrangelo, Daniel (1545) | Draw 1-1 | -11593 |
| 9modern | 128 | Mendolia, Joseph (1642) | Won 2-0 | +191612 |
| 10modern | 67 | Stein, Joe (1591) | Lost 0-2 | -191593 |
| 11modern | 36 | Kassis, Eli (1839) | Lost 0-2 | -131580 |
| 12modern | 152 | Neal, Stephen (1768) | Lost 0-2 | -151565 |
| 13modern | 148 | Penny, Jack (1510) | Lost 0-2 | -191546 |
| 14modern | 141 | Mitchell, Raymond (1522) | Won 2-0 | +181564 |
| 15modern | 132 | Currie, Joshua (1385) | Lost 1-2 | -221542 |
| top | average opponent: 1588record: 7-5-3 | new rating: 1542 | ||