Grybel, Robert
Current rating: 1427
Record: 3-7
| Grand Prix Richmond 2014 (modern) | starting rating: 1445 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 361 | Staton, Billy (1500) | Lost 1-2 | -171428 |
| 2modern | 460 | Pena, Jason (1339) | Won 2-0 | +171445 |
| 3modern | 343 | Ross, Sean (1433) | Won 2-1 | +171462 |
| 4modern | 267 | Wells, Justin (1424) | Lost 1-2 | -181444 |
| 5modern | 502 | Drury, Brandon (1518) | Lost 0-2 | -171427 |
| average opponent: 1443record: 2-3 | new rating: 1427 | |||
| Grand Prix Washington DC 2013 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 69 | De Mattie, Jason (1500) | Lost 0-2 | -181482 |
| 2legacy | 427 | Fehon, Jeremy (1444) | Lost 1-2 | -191463 |
| 3legacy | 745 | Googe, Bill (1462) | Won 2-0 | +181481 |
| 4legacy | 636 | Muruvanda, Tim (1482) | Lost 1-2 | -181463 |
| 5legacy | 709 | Alvisi, Dan (1465) | Lost 0-2 | -181445 |
| average opponent: 1470record: 1-4 | new rating: 1445 | |||