Barnhart, John T
Current rating: 1554
Record: 6-3
| Grand Prix Baltimore 2012 (DKA standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 292 | Bogner, David (1500) | Lost 1-2 | -181482 |
| 2standard | 467 | Maclaren, John (1482) | Lost 1-2 | -181464 |
| 3standard | 662 | Sweetapple, Christophe (1464) | Won 2-0 | +181482 |
| 4standard | 650 | Vasil, Jeremy (1482) | Won 2-0 | +181500 |
| 5standard | 393 | Yahya, Rachid (1465) | Won 2-0 | +171517 |
| 6standard | 276 | Taylor, Dennis (1557) | Won 2-1 | +191536 |
| 7standard | 333 | Watson, DeQuan (1425) | Won 2-1 | +161552 |
| 8standard | 189 | Swick, Scott (1540) | Won 2-0 | +181570 |
| 9standard | 157 | Senneway, Bill (1704) | Lost 1-2 | -161554 |
| average opponent: 1513record: 6-3 | new rating: 1554 | |||