Amrhein, Robert
Current rating: 1478
Record: 3-4
| Grand Prix Columbus 2012 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 15 | Wampler, Isaac (1428) | Won 2-0 | +171517 |
| 2modern | 110 | Kinney, Michael (1469) | Lost 0-2 | -191498 |
| 3modern | 255 | Dill, Ray (1500) | Won 2-1 | +181516 |
| 4modern | 351 | James, Caleb (1507) | Lost 0-2 | -181498 |
| 5modern | 370 | Metzger, Steven (1482) | Won 2-0 | +171515 |
| 6modern | 237 | Olszowy, John h (1426) | Lost 0-2 | -191496 |
| 7modern | 269 | Goldhawk, Nicholas (1485) | Lost 1-2 | -181478 |
| average opponent: 1471record: 3-4 | new rating: 1478 | |||