Porter, Brian
Current rating: 1409
Record: 1-6
| Grand Prix Washington DC 2013 (legacy) | starting rating: 1446 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 6 | Wickboldt, Matthew (1500) | Lost 0-2 | -171429 |
| 2legacy | 544 | Massey, Christopher (1338) | Lost 1-2 | -201409 |
| 3legacy | 724 | Mather, David (1466) | Won 2-0 | +191428 |
| 4legacy | 734 | Tompkins, Mike (1378) | Lost 0-2 | -191409 |
| average opponent: 1420record: 1-3 | new rating: 1409 | |||
| Grand Prix Columbus 2012 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 14 | Carnahan, Shane (1500) | Lost 0-2 | -181482 |
| 2modern | 349 | McFetridge, Brian (1482) | Lost 0-2 | -181464 |
| 3modern | 433 | Robinson, Jon T (1444) | Lost 1-2 | -181446 |
| average opponent: 1475record: 0-3 | new rating: 1446 | |||