Mason, Brian
Current rating: 1406
Record: 5-12
| Grand Prix Richmond 2014 (modern) | starting rating: 1391 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 1355 | Cox, Preston (1476) | Won 2-0 | +201411 |
| 2modern | 1078 | Griffin, Christian (1660) | Lost 0-2 | -141397 |
| 3modern | 1451 | Liu, Patrick (1483) | Won 2-0 | +201417 |
| 4modern | 1230 | Rix, Jakob (1548) | Won 2-0 | +201437 |
| 5modern | 1251 | Scott, Todd (1520) | Lost 1-2 | -161421 |
| 6modern | 1205 | Webb, Michael (1634) | Lost 1-2 | -151406 |
| top | average opponent: 1553record: 3-3 | new rating: 1406 | ||
| Grand Prix Atlanta 2011 (extended) | starting rating: 1417 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 555 | Cimaszewski, Joseph (1558) | Lost 0-2 | -161401 |
| 2extended | 617 | Causey, Brittany M (1464) | Won 2-1 | +201421 |
| 3extended | 514 | Wakefield, Andrew (1587) | Lost 0-2 | -151406 |
| 4extended | 611 | DeMars, Brian (1601) | Lost 0-2 | -151391 |
| top | average opponent: 1553record: 1-3 | new rating: 1391 | ||
| Grand Prix Nashville 2010 (SOM limited) | starting rating: 1449 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 617 | Adkins, Joshua (1485) | Lost 1-2 | -171432 |
| 2sealed | 634 | Creed, David T (1482) | Won 2-0 | +191451 |
| 3sealed | 616 | Hughes, Cory (1499) | Lost 1-2 | -171434 |
| 4sealed | 655 | Czirr, Mark (1500) | Lost 0-2 | -171417 |
| top | average opponent: 1491record: 1-3 | new rating: 1417 | ||
| Grand Prix Houston 2010 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 4extended | 49 | Norris, Chris (1500) | Lost 1-2 | -181482 |
| 5extended | 92 | Raflowitz, Taylor (1584) | Lost 1-2 | -161466 |
| 6extended | 107 | Hill, Alison (1540) | Lost 1-2 | -171449 |
| top | average opponent: 1541record: 0-3 | new rating: 1449 | ||