Birdsong, Joseph
Current rating: 1528
Record: 20-20-2
| Grand Prix Louisville 2017 (legacy) | starting rating: 1599 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 680 | Jensen, Justin (1460) | Lost 1-2 | -201579 |
| 2legacy | 754 | Hamelin-Lachapelle, Arnaud (1483) | Won 2-1 | +161595 |
| 3legacy | 905 | Coyle, Michael (1393) | Draw 1-1 | -41591 |
| 4legacy | 806 | Goding, Chad (1469) | Won 2-1 | +161607 |
| 5legacy | 645 | Koblinski, Kyle (1517) | Lost 0-2 | -201587 |
| 6legacy | 784 | Zeng, Calvin (1502) | Lost 1-2 | -191568 |
| 7legacy | 834 | Johnson, Patricia (1433) | Lost 0-2 | -211547 |
| 8legacy | 799 | Davis, Drake (1450) | Lost 0-2 | -191528 |
| top | average opponent: 1463record: 2-5-1 | new rating: 1528 | ||
| Grand Prix Miami 2015 (FRF standard) | starting rating: 1576 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 338 | Carnes, Mark (1500) | Won 2-1 | +171593 |
| 2standard | 240 | Mathis, Jeffrey (1421) | Won 2-0 | +151608 |
| 3standard | 115 | Alderman, Justin (1484) | Won 2-0 | +161624 |
| 4standard | 34 | LePine, Mark (1899) | Draw 1-1 | +41628 |
| 5standard | 75 | Cyr, Tyler (1591) | Lost 0-2 | -181610 |
| 6standard | 182 | Fennell, Christopher (2042) | Lost 1-2 | -111599 |
| top | average opponent: 1656record: 3-2-1 | new rating: 1599 | ||
| Grand Prix Miami 2013 (DGM standard) | starting rating: 1413 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 27 | Davis, Darrin (1500) | Won 2-1 | +201433 |
| 2standard | 28 | Chernoff, Adam (1708) | Won 2-0 | +231456 |
| 3standard | 81 | Chinlund, Kit (1536) | Won 2-0 | +191475 |
| 4standard | 146 | Poff, Chris (1668) | Won 2-0 | +221497 |
| 5standard | 46 | Holmes, Trevor (1554) | Lost 0-2 | -171480 |
| 6standard | 160 | Buchanan, Jessica (1615) | Lost 1-2 | -161464 |
| 7standard | 131 | Padilla, Hector (1538) | Won 2-1 | +201484 |
| 8standard | 118 | Espejo, Jonny (1518) | Won 2-0 | +181502 |
| 9standard | 45 | King, Byron (1606) | Won 2-0 | +201522 |
| 10standard | 46 | Vance, James (1796) | Won 2-1 | +231545 |
| 11standard | 41 | Majors, Michael (1940) | Won 2-1 | +251570 |
| 12standard | 16 | Grouchy, Blair J (1590) | Lost 0-2 | -181552 |
| 13standard | 34 | Kohrs, Brandon (1579) | Lost 0-2 | -171535 |
| 14standard | 38 | Yim, Chi Hoi (1847) | Won 2-1 | +231558 |
| 15standard | 43 | Ochoa, Raul (1566) | Won 2-1 | +181576 |
| top | average opponent: 1638record: 11-4 | new rating: 1576 | ||
| Grand Prix Indianapolis 2013 (RTR limited) | starting rating: 1466 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 147 | Stewart, Perry (1482) | Lost 1-2 | -181448 |
| 2sealed | 230 | Gray, Jeremy (1510) | Lost 1-2 | -161432 |
| 3sealed | 308 | Jackson, Christine (1464) | Won 2-0 | +181450 |
| 4sealed | 285 | Wyatt, Phil (1427) | Lost 1-2 | -181432 |
| 5sealed | 316 | Hoffman, Trisha (1410) | Lost 1-2 | -191413 |
| top | average opponent: 1459record: 1-4 | new rating: 1413 | ||
| Grand Prix Orlando 2012 (ISD standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 88 | Lombardi, Joey (1500) | Lost 0-2 | -181482 |
| 3standard | 214 | Pieiga, Sergio (1482) | Won 2-0 | +181500 |
| 4standard | 271 | Williams, Sam (1520) | Lost 1-2 | -181482 |
| 5standard | 298 | Ahlm, Ian (1486) | Lost 0-2 | -181464 |
| 6standard | 324 | Hann, Gary (1481) | Won 2-1 | +191483 |
| 7standard | 244 | Dunkelman, Steven (1526) | Lost 0-2 | -171466 |
| 8standard | 238 | Nolen, Jeffrey (1481) | Lost 1-2 | -181448 |
| 9standard | 234 | Dill, Amanda (1464) | Won 2-0 | +181466 |
| top | average opponent: 1492record: 3-5 | new rating: 1466 | ||