Osborn, Matthew
Current rating: 1631
Record: 11-5-1
| Grand Prix Atlanta 2015 (BFZ limited) | starting rating: 1547 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 255 | Luster, Patrick (1406) | Won 2-1 | +161563 |
| 2sealed | 53 | Cohen, Brendan (1538) | Lost 1-2 | -191544 |
| 3sealed | 447 | Wyatt, Sam (1499) | Won 2-0 | +171561 |
| 4sealed | 332 | Brown, Andrew (1874) | Won 2-0 | +241585 |
| 5sealed | 210 | Sacks, Neal (1750) | Won 2-1 | +211606 |
| 6sealed | 202 | Watson, Nick (1764) | Won 2-1 | +211627 |
| 7sealed | 156 | Al-Bacha, Wesimo (1968) | Lost 1-2 | -121615 |
| 8sealed | 146 | Freeman, Chris (1465) | Won 2-0 | +151630 |
| 9sealed | 166 | Guy, Stacy (1694) | Draw 1-1 | +11631 |
| average opponent: 1662record: 6-2-1 | new rating: 1631 | |||
| Grand Prix Atlanta 2014 (JOU limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 277 | Cooper, Morgan (1500) | Won 2-1 | +181518 |
| 2sealed | 406 | Spezzo, Vincent (1521) | Won 2-1 | +181536 |
| 3sealed | 232 | Stiver, Brittany (1540) | Lost 0-2 | -181518 |
| 4sealed | 474 | Brock, Hutch (1712) | Lost 0-2 | -141504 |
| 5sealed | 666 | Blankenship, David (1560) | Won 2-1 | +191523 |
| 6sealed | 422 | Rhodes, Anthony (1505) | Won 2-1 | +171540 |
| 7sealed | 394 | Rasmussen, Ron (1608) | Won 2-0 | +201560 |
| 8sealed | 336 | Cuvelier, John (1878) | Lost 0-2 | -131547 |
| average opponent: 1603record: 5-3 | new rating: 1547 | |||