Gross, Robert E
Current rating: 1563
| Grand Prix Charlotte 2013 (GTC limited) | starting rating: 1555 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 866 | Frank, Harry (1328) | Won 2-0 | +141569 |
| 2sealed | 753 | Raymond, Ted (1518) | Won 2-0 | +171586 |
| 3sealed | 772 | Bianchi, Alex (1450) | Won 2-1 | +151601 |
| 4sealed | 691 | Plier, James (1445) | Lost 1-2 | -201581 |
| 5sealed | 797 | Suarez, Daniel (1719) | Lost 1-2 | -161565 |
| 6sealed | 960 | Turner, Jacob B (1513) | Won 2-1 | +171582 |
| 7sealed | 874 | Keith, Joseph (1544) | Lost 0-2 | -191563 |
| top | average opponent: 1502record: 4-3 | new rating: 1563 | ||
| Grand Prix Charleston 2012 (RTR standard) | starting rating: 1574 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 180 | McEnaney, Corey (1500) | Lost 0-0 | -191555 |
| top | record: 0-1 | new rating: 1555 | ||
| Grand Prix Atlanta 2011 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 3extended | 17 | McFadden, Robert (1539) | Won 2-0 | +191519 |
| 4extended | 41 | McDonough, Daniel J (1500) | Won 2-1 | +171536 |
| 5extended | 28 | Fabiano, Gerard (1920) | Lost 1-2 | -111525 |
| 6extended | 81 | Schadt, Jeff (1552) | Won 2-0 | +191544 |
| 7extended | 30 | Kanies, Andrew (1575) | Won 2-1 | +181562 |
| 8extended | 31 | Eason, Brian (1647) | Won 2-1 | +201582 |
| 9extended | 15 | Runyon, John (1642) | Lost 0-2 | -171565 |
| 10extended | 50 | Vines, Jeremy (1601) | Won 2-0 | +181583 |
| 11extended | 23 | Van Lunen, Jacob (1667) | Won 2-0 | +201603 |
| 12extended | 32 | Ford, Jason (1760) | Lost 0-2 | -151588 |
| 13extended | 49 | Cox, Patrick (1832) | Lost 0-2 | -141574 |
| top | average opponent: 1658record: 7-4 | new rating: 1574 | ||