Carroll, Billy D
Current rating: 1551
| Grand Prix Houston 2013 (DGM limited) | starting rating: 1490 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 243 | C906, Ryan (1500) | Lost 0-2 | -181472 |
| 2sealed | 402 | Grice, Thomas (1481) | Won 2-0 | +181490 |
| 3sealed | 273 | Hoy, Christopher (1499) | Won 2-0 | +191509 |
| 4sealed | 76 | Bolognese, Anthony C (1524) | Lost 1-2 | -181491 |
| 5sealed | 237 | Sheng, Jeff (1471) | Won 2-0 | +171508 |
| 6sealed | 209 | Alcorn, Bryan (1663) | Won 2-0 | +211529 |
| 7sealed | 126 | Stringer, Austin (1542) | Won 2-1 | +181547 |
| 8sealed | 109 | Harter, Nicholas (1554) | Won 2-0 | +191566 |
| 9sealed | 89 | Tobey, Aaron (1728) | Lost 0-2 | -151551 |
| top | average opponent: 1551record: 6-3 | new rating: 1551 | ||
| Grand Prix San Antonio 2012 (RTR standard) | starting rating: 1490 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 69 | Henson, Steven R (1498) | Won 2-0 | +181508 |
| 2standard | 90 | Simpson, Kyle (1518) | Lost 0-2 | -181490 |
| 3standard | 155 | Salinas, Merced (1492) | Won 2-0 | +181508 |
| 4standard | 106 | Wibel, Shane (1469) | Won 2-0 | +171525 |
| 5standard | 95 | Hoffman, Kris (1519) | Lost 0-2 | -181507 |
| 6standard | 168 | Eccleston, Javier (1556) | Lost 1-2 | -171490 |
| top | average opponent: 1509record: 3-3 | new rating: 1490 | ||
| Grand Prix Dallas-Fort Worth 2011 (MBS standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 75 | DeLeon, John (1500) | Won 2-0 | +181518 |
| 2standard | 132 | Dye, Michael A (1518) | Won 2-0 | +181536 |
| 3standard | 71 | Davis, James (1689) | Lost 1-2 | -151521 |
| 4standard | 182 | Sanchez, Kyle (1798) | Lost 1-2 | -131508 |
| 5standard | 361 | Brennecke, Garrett T (1500) | Lost 0-2 | -181490 |
| top | average opponent: 1601record: 2-3 | new rating: 1490 | ||