Shrake, David
Current rating: 1552
Record: 18-15
| Grand Prix Orlando 2017 (AER limited) | starting rating: 1553 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 912 | Dick, Dallas (1485) | Won 2-1 | +161569 |
| 2sealed | 728 | Vera, Fernando (1553) | Won 2-1 | +181587 |
| 3sealed | 545 | Martin, Fletcher (1535) | Lost 0-2 | -191568 |
| 4sealed | 856 | Ramirez Sanchez, Emmanuel (1955) | Lost 0-2 | -111557 |
| 5sealed | 947 | Hurley, William (1499) | Lost 1-2 | -191538 |
| 6sealed | 990 | Blake, Amber (1393) | Won 2-1 | +151553 |
| 7sealed | 885 | Kobal, Cheryl (1500) | Won 2-1 | +171570 |
| 8sealed | 855 | Young, Michael (1531) | Lost 1-2 | -181552 |
| top | average opponent: 1556record: 4-4 | new rating: 1552 | ||
| Grand Prix Atlanta 2015 (BFZ limited) | starting rating: 1578 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 682 | Pittman, William (1500) | Lost 1-2 | -201558 |
| 2sealed | 542 | Sherman, Joel (1480) | Won 2-0 | +171575 |
| 3sealed | 587 | Weaver, Zachary (1500) | Lost 1-2 | -201555 |
| 4sealed | 720 | Festin, David (1482) | Won 2-1 | +171572 |
| 5sealed | 651 | Robledo, Carlos (1491) | Lost 0-2 | -191553 |
| top | average opponent: 1491record: 2-3 | new rating: 1553 | ||
| Grand Prix Orlando 2014 (KTK limited) | starting rating: 1604 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 340 | Zhukov, Lina (1446) | Won 2-1 | +151619 |
| 2sealed | 696 | Brown, Matthew (1572) | Lost 0-2 | -191600 |
| 3sealed | 344 | Ynoa, Francis (1482) | Won 2-1 | +161616 |
| 4sealed | 231 | Cornwell, Kyle (1591) | Lost 0-0 | -191597 |
| 5sealed | 273 | Rivera Garcia, Rafael (1502) | Lost 0-2 | -191578 |
| top | average opponent: 1519record: 2-3 | new rating: 1578 | ||
| Grand Prix Tampa 2009 (ZEN limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 121 | Suarez, Ruben A (1500) | Won 2-1 | +181518 |
| 2sealed | 108 | Flores, Kyle E (1482) | Lost 0-2 | -191499 |
| 3sealed | 158 | irvine, anders (1500) | Won 2-0 | +181517 |
| 4sealed | 187 | Himes, Chad (1423) | Won 2-0 | +171534 |
| 5sealed | 63 | Farrell, Bret (1622) | Won 2-1 | +191553 |
| 6sealed | 121 | Bertone, Christopher (1509) | Won 2-0 | +171570 |
| 7sealed | 64 | Marr, Mat (1838) | Lost 1-2 | -131557 |
| 8sealed | 126 | Antunes, Robert (1525) | Won 2-0 | +181575 |
| 9sealed | 57 | Hines, Frank (1643) | Won 2-0 | +191594 |
| 10draft | 21 | Duguid, James (1570) | Won 2-0 | +171611 |
| 11draft | 16 | Postlethwait, William (1735) | Lost 0-2 | -151596 |
| 12draft | 26 | Fennell, Christopher (1867) | Lost 0-2 | -131583 |
| 13draft | 49 | Guss, Max (1576) | Won 2-0 | +171600 |
| 14draft | 4 | Hurst, Greg (1602) | Won 2-0 | +181618 |
| 15draft | 26 | Casatti, Vagner William (1799) | Lost 0-2 | -141604 |
| top | average opponent: 1613record: 10-5 | new rating: 1604 | ||