Turnbow, Greg
Current rating: 1458
| Grand Prix Louisville 2013 (THS standard) | starting rating: 1471 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 147 | Reinschreiber, Zachary (1561) | Won 2-0 | +191490 |
| 2standard | 150 | Cooper, Mitchell (1488) | Lost 0-2 | -181472 |
| 3standard | 332 | Sellers, Eric (1500) | Won 2-0 | +191491 |
| 4standard | 403 | Emerick, James (1506) | Won 2-0 | +181509 |
| 5standard | 269 | Perry, Tom (1454) | Lost 0-2 | -191490 |
| 6standard | 314 | Lorren, Phillip (1666) | Lost 1-2 | -151475 |
| 7standard | 347 | Figueroa, Eddie (1514) | Lost 0-2 | -171458 |
| top | average opponent: 1527record: 3-4 | new rating: 1458 | ||
| Grand Prix Nashville 2012 (DKA limited) | starting rating: 1427 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 138 | Phelan, Colton (1500) | Won 2-0 | +201447 |
| 2sealed | 131 | Long, Clayton (1517) | Draw 1-1 | +11448 |
| 3sealed | 188 | Carter, Jack B (1518) | Lost 0-2 | -171431 |
| 4sealed | 366 | Crews, Matt (1400) | Won 2-0 | +181449 |
| 5sealed | 263 | Baker, Jeff (1558) | Won 2-0 | +201469 |
| 6sealed | 141 | Ward, Phillip J (1468) | Won 2-1 | +181487 |
| 7sealed | 110 | Usner, Jacob (1512) | Won 2-1 | +181505 |
| 8sealed | 65 | Yampolsky, Ben (1530) | Lost 1-2 | -171488 |
| 9sealed | 120 | Gardner, Joe A (1549) | Lost 0-2 | -171471 |
| top | average opponent: 1506record: 5-3-1 | new rating: 1471 | ||
| Grand Prix Nashville 2010 (SOM limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 424 | Fridriksson, Stefan (1466) | Lost 0-2 | -191481 |
| 2sealed | 610 | Carrillo, Carlos (1482) | Lost 1-2 | -181463 |
| 3sealed | 685 | Mclane, Ryan (1464) | Lost 0-2 | -181445 |
| 4sealed | 721 | Dobreva, Tatyana (1446) | Lost 0-2 | -181427 |
| top | average opponent: 1465record: 0-4 | new rating: 1427 | ||