Irwin, Brad
Current rating: 1439
Record: 15-20-2
| Regional Championships Dallas 2023 (pioneer) | starting rating: 1511 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 497 | Sahai, Nathan (1612) | Lost 0-2 | -161495 |
| 2pioneer | 526 | Blesso, Marc (2022) | Lost 1-2 | -101485 |
| 3pioneer | 514 | Minier, Christopher (1454) | Lost 1-2 | -181467 |
| 4pioneer | 543 | Smith, Christopher (1683) | Lost 1-2 | -141453 |
| 5pioneer | 540 | Andress, Nathan (1673) | Lost 0-2 | -141439 |
| top | average opponent: 1689record: 0-5 | new rating: 1439 | ||
| Grand Prix Portland 2019 (ELD standard) | starting rating: 1523 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 25 | Campbell, Brian (1476) | Lost 1-2 | -181505 |
| 2standard | 131 | Smith, Nathan (1425) | Won 2-1 | +161521 |
| 3standard | 181 | Taylor, Chad (1658) | Lost 0-0 | -151506 |
| 4standard | 198 | McNeely, Gary (1469) | Lost 0-2 | -191487 |
| 5standard | 201 | Benelli, Evan (1465) | Won 2-0 | +171504 |
| 6standard | 170 | Myers, William (1603) | Won 2-0 | +201524 |
| 7standard | 129 | Tang, Jeffrey (1780) | Lost 0-2 | -131511 |
| top | average opponent: 1554record: 3-4 | new rating: 1511 | ||
| Grand Prix Portland 2017 (XLN standard) | starting rating: 1465 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 109 | Aasen, Andrew (1428) | Won 2-0 | +181483 |
| 2standard | 289 | Tansley, Brandon (1584) | Lost 1-2 | -171466 |
| 3standard | 587 | Van Orman, Pandora (1453) | Won 2-1 | +181484 |
| 4standard | 339 | Gadzinski, Grae (1542) | Won 2-1 | +191503 |
| 5standard | 145 | Crackenberg, Peter (1434) | Won 2-1 | +171520 |
| 6standard | 151 | Cranford, Clayton (1520) | Draw 1-1 | 01520 |
| 7standard | 124 | Gant, Michael (1683) | Won 2-1 | +211541 |
| 8standard | 70 | Schultze, Nate (1581) | Draw 1-1 | +11542 |
| 9standard | 136 | Moss, Stephen (1524) | Lost 1-2 | -191523 |
| top | average opponent: 1528record: 5-2-2 | new rating: 1523 | ||
| Grand Prix Portland 2016 (EMN standard) | starting rating: 1483 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 264 | Crowder, Daniel (1610) | Lost 1-2 | -161467 |
| 2standard | 577 | King, Kelley (1469) | Lost 0-2 | -181449 |
| 3standard | 720 | Braden, Tj (1404) | Won 2-0 | +181467 |
| 4standard | 584 | Morris, Steven (1503) | Won 2-1 | +181485 |
| 5standard | 440 | Allen, Timothy (1466) | Lost 1-2 | -181467 |
| 6standard | 533 | Wennmacher, Justin (1532) | Lost 0-2 | -171450 |
| 7standard | 560 | McGee, Mark (1309) | Won 2-0 | +151465 |
| 8standard | 458 | Pierce, Chad (1483) | Won 2-0 | +191484 |
| 9standard | 341 | Boykowich, Dylan (1456) | Lost 0-0 | -191465 |
| top | average opponent: 1470record: 4-5 | new rating: 1465 | ||
| Grand Prix Denver 2001 (Invasion block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 45 | Barnum, David (1500) | Lost 1-2 | -181482 |
| 2block | 112 | Ingram, Matthew (1482) | Lost 0-2 | -181464 |
| 3block | 151 | Jarman, Brad (1464) | Won 2-0 | +181482 |
| 4block | 159 | Wilber, Raymond (1481) | Won 2-0 | +181500 |
| 5block | 96 | Szigeti, Peter (1585) | Lost 0-2 | -161484 |
| 6block | 140 | Niday, Lucas (1454) | Won 2-1 | +171501 |
| 7block | 105 | Hallford, Daniel (1501) | Lost 0-2 | -181483 |
| top | average opponent: 1495record: 3-4 | new rating: 1483 | ||