Ewing, Robert
Current rating: 1458
Record: 6-9
| Grand Prix Charlotte 2016 (modern) | starting rating: 1446 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 504 | Sherrill, Hunter (1500) | Lost 1-2 | -171429 |
| 2modern | 885 | Gold, Jonathan (1482) | Won 2-1 | +191448 |
| 3modern | 846 | Drews, Samuel (1563) | Won 2-0 | +201468 |
| 4modern | 851 | Green, Brittany (1533) | Won 2-0 | +191487 |
| 5modern | 196 | Faulkner, Thomas (1532) | Lost 0-2 | -171470 |
| 6modern | 754 | Graves, Brian (1483) | Won 2-1 | +181488 |
| 7modern | 321 | Smith, Jason 863 (1500) | Lost 0-2 | -171471 |
| 8modern | 381 | Fogle, Jack (1805) | Lost 1-2 | -131458 |
| average opponent: 1550record: 4-4 | new rating: 1458 | |||
| Grand Prix Las Vegas 2001 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 39 | Thomas, Cole (1515) | Lost 0-2 | -181482 |
| 2extended | 181 | Holliday, Ryan (1482) | Won 2-0 | +181500 |
| 3extended | 105 | Lysik, Bruce (1500) | Lost 0-2 | -181482 |
| 4extended | 162 | Siller, Eddie (1482) | Lost 1-2 | -181464 |
| 5extended | 172 | Arnold, Michael (1465) | Lost 0-2 | -181446 |
| 6extended | 148 | Dowling, J (1446) | Lost 1-2 | -181428 |
| 7extended | 123 | Specht, Larry (1415) | Won 2-0 | +181446 |
| average opponent: 1472record: 2-5 | new rating: 1446 | |||