Massengill, Drew
Current rating: 1562
| Grand Prix Baltimore 2014 (KTK limited) | starting rating: 1550 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 211 | Williams, Matt (1470) | Won 2-0 | +171567 |
| 2sealed | 56 | Jao, Jeff (1512) | Lost 0-2 | -191548 |
| 3sealed | 455 | D'Agostino, Jaime (1347) | Won 2-0 | +141562 |
| 4sealed | 251 | Glass-Siegel, Saul (1524) | Won 2-1 | +171579 |
| 5sealed | 131 | Wright, Harry (1537) | Won 2-0 | +181597 |
| 6sealed | 60 | Naidu, Akash (1729) | Lost 0-2 | -161581 |
| 7sealed | 202 | Rinell, Robert (1509) | Lost 1-2 | -191562 |
| top | average opponent: 1518record: 4-3 | new rating: 1562 | ||
| Grand Prix Atlanta 2008 (ALA limited) | starting rating: 1554 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 60 | Garay, Juan (1500) | Won 2-1 | +171571 |
| 2sealed | 168 | Schwartz, Greg C (1573) | Lost 0-2 | -181553 |
| 3sealed | 195 | Tiszai, Brandon (1500) | Lost 0-2 | -191534 |
| 4sealed | 224 | Hoffman, Ryan (1555) | Won 1-0 | +181552 |
| 5sealed | 200 | Silvers, Bryan (1504) | Won 2-1 | +171569 |
| 6sealed | 170 | Mabie, Bryan (1507) | Lost 0-2 | -191550 |
| top | average opponent: 1523record: 3-3 | new rating: 1550 | ||
| Grand Prix Indianapolis 2008 (SHM limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 48 | Levin, Julian (1580) | Lost 1-2 | -171483 |
| 2sealed | 395 | Assiff, Spencer (1452) | Lost 0-2 | -181465 |
| 3sealed | 456 | Paoli, Mark (1464) | Won 2-1 | +181483 |
| 4sealed | 420 | Crisp, Dylan (1482) | Lost 1-2 | -181465 |
| 5sealed | 387 | Morrill, Thomas (1463) | Won 2-1 | +181483 |
| 6sealed | 321 | Elkon, Jacob (1482) | Won 2-1 | +181501 |
| 7sealed | 243 | Crossland, Matthew (1437) | Won 2-0 | +171518 |
| 8sealed | 163 | Rothrock, Andrew (1516) | Won 2-1 | +181536 |
| 9sealed | 136 | DOVE-BUCK, ANDREW (1535) | Won 2-0 | +181554 |
| top | average opponent: 1490record: 6-3 | new rating: 1554 | ||