Shamma, Samir
Current rating: 1478
Record: 10-13
| Grand Prix Atlanta 2016 (KLD limited) | starting rating: 1431 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 919 | Purcell, David (1500) | Won 2-0 | +191450 |
| 2sealed | 555 | Hobdy, Marcus (1628) | Won 2-0 | +221472 |
| 3sealed | 638 | Krupski, Jared (1580) | Won 2-0 | +201492 |
| 4sealed | 622 | Ugale, Ashwin (1722) | Won 2-1 | +221514 |
| 5sealed | 553 | Molasky, Scott (1777) | Lost 1-2 | -141500 |
| 6sealed | 653 | Pisano, Rob (2045) | Lost 1-2 | -91491 |
| 7sealed | 821 | Santosa, Joshua (1540) | Won 2-1 | +191510 |
| 8sealed | 669 | Orts, Zachary (1642) | Lost 1-2 | -151495 |
| 9sealed | 817 | Votava, Alex (1549) | Lost 0-2 | -171478 |
| top | average opponent: 1665record: 5-4 | new rating: 1478 | ||
| Grand Prix Atlanta 2015 (BFZ limited) | starting rating: 1447 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 214 | Chasteen, Bill (1521) | Won 2-1 | +191466 |
| 2sealed | 288 | McConahie, Jesse (1521) | Lost 0-2 | -171449 |
| 3sealed | 729 | Bowden, Erin (1415) | Won 2-0 | +181467 |
| 4sealed | 330 | Truan, Michael (1518) | Lost 0-2 | -171450 |
| 5sealed | 546 | Lewallen, Josh (1420) | Lost 1-2 | -191431 |
| top | average opponent: 1479record: 2-3 | new rating: 1431 | ||
| Grand Prix Cincinnati 2014 (BNG standard) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 541 | Morris, Jonathan B (1503) | Won 2-1 | +191483 |
| 2standard | 159 | Barger, Ryan (1508) | Won 2-1 | +181501 |
| 3standard | 71 | Miller, Anthony (1401) | Lost 0-2 | -201481 |
| 4standard | 352 | Hulett, Kyle (1545) | Lost 0-2 | -171464 |
| 5standard | 415 | Moulton, Jessica (1500) | Lost 0-2 | -171447 |
| top | average opponent: 1492record: 2-3 | new rating: 1447 | ||
| Grand Prix Louisville 2013 (THS standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 164 | Taylor, Joshua (1492) | Lost 0-2 | -181482 |
| 2standard | 375 | Obourn, Scott (1481) | Lost 0-2 | -181464 |
| 3standard | 520 | McCoy, Bradley (1463) | Won 2-0 | +181482 |
| 4standard | 490 | VanAtter, David (1482) | Lost 1-2 | -181464 |
| top | average opponent: 1480record: 1-3 | new rating: 1464 | ||