Mattingly, Michael
Current rating: 1509
Record: 6-5
| Grand Prix Dallas-Fort Worth 2015 (ORI limited) | starting rating: 1515 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 450 | Terrance, Elizabeth (1500) | Won 2-1 | +181533 |
| 2sealed | 229 | Stenger, Shane (1500) | Lost 0-2 | -191514 |
| 3sealed | 577 | Key, Jayden (1438) | Won 2-0 | +171531 |
| 4sealed | 231 | Sherrod, David (1449) | Lost 1-2 | -191512 |
| 5sealed | 549 | Smith, Courtney (1424) | Won 2-0 | +161528 |
| 6sealed | 236 | Gonzalez, Oscar (1491) | Lost 0-2 | -191509 |
| average opponent: 1467record: 3-3 | new rating: 1509 | |||
| Grand Prix Austin 2012 (ISD limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 216 | Griffith, Jeremy (1487) | Lost 1-2 | -181482 |
| 2sealed | 298 | Carter, Devin [USA] (1482) | Won 2-0 | +181500 |
| 3sealed | 319 | Van Deelen, Mike (1482) | Won 2-0 | +171517 |
| 4sealed | 247 | Timmons, Matt (1500) | Won 2-1 | +181535 |
| 5sealed | 203 | Graves, Josh (1435) | Lost 0-2 | -201515 |
| average opponent: 1477record: 3-2 | new rating: 1515 | |||