Santos, David M
Current rating: 1648
Record: 19-12
| Grand Prix Boston-Worcester 2012 (M13 limited) | starting rating: 1492 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 129 | Depaolis-Feingol, Nick (1500) | Won 2-0 | +181510 |
| 2sealed | 92 | Doehlert, Spencer (1542) | Lost 1-2 | -171493 |
| 3sealed | 614 | Barrette, Julien (1544) | Won 2-0 | +191512 |
| 4sealed | 486 | Cavaliere, Vincent (1503) | Won 2-0 | +181530 |
| 5sealed | 228 | Flores, Edgar (1695) | Won 2-0 | +211551 |
| 6sealed | 131 | Riley, Tristan B (1552) | Lost 1-2 | -181533 |
| 7sealed | 261 | Sondike, Daniel (1661) | Won 2-0 | +201553 |
| 8sealed | 127 | Santone, Gregory (1558) | Won 2-0 | +181571 |
| 9sealed | 83 | Blain, Ezekiel (1528) | Won 2-0 | +171588 |
| 10sealed | 83 | Taylor, Dustin (1718) | Won 2-1 | +211609 |
| 11draft | 78 | Leong, Robert (1742) | Won 2-0 | +201629 |
| 12draft | 75 | Wilson, Orion (1616) | Won 2-0 | +181647 |
| 13draft | 12 | Dionne, David (1646) | Won 2-0 | +181665 |
| 14draft | 93 | Dziekan, Lukasz (1694) | Lost 1-2 | -181647 |
| 15draft | 32 | Giustino, Anthony (1659) | Won 2-0 | +181665 |
| 16draft | 12 | Asselin, Philippe (1709) | Lost 0-2 | -171648 |
| top | average opponent: 1617record: 12-4 | new rating: 1648 | ||
| Grand Prix Boston 2009 (M10 limited) | starting rating: 1504 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 487 | Tharmaratnam, Samuel (1571) | Lost 0-2 | -161488 |
| 3sealed | 556 | Gotlib, Ilia (1503) | Won 2-1 | +181506 |
| 4sealed | 615 | Chitturi, Ashok (1507) | Won 2-1 | +181524 |
| 5sealed | 483 | Marenger, Steve (1536) | Lost 1-2 | -181506 |
| 6sealed | 525 | Hinkle, Charles (1727) | Lost 0-2 | -141492 |
| top | average opponent: 1569record: 2-3 | new rating: 1492 | ||
| Grand Prix Madrid 2008 (EVE limited) | starting rating: 1523 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 106 | Fernandez, Guillermo J (1517) | Won 1-0 | +181541 |
| 3sealed | 60 | Kirsch, Christian (1528) | Lost 1-2 | -181523 |
| 4sealed | 192 | Garcia Crespo, Javier (1499) | Lost 0-2 | -191504 |
| top | average opponent: 1515record: 1-2 | new rating: 1504 | ||
| Grand Prix Indianapolis 2008 (SHM limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 164 | Wright, Troy (1506) | Won 2-0 | +181518 |
| 4sealed | 95 | Bartolomei, Iain (1553) | Won 2-0 | +191537 |
| 5sealed | 42 | Hinojosa, Rolaund (1555) | Lost 1-2 | -181519 |
| 6sealed | 91 | Heinemann, Adam (1499) | Won 2-1 | +181537 |
| 7sealed | 26 | Penick, John (1714) | Lost 1-2 | -151522 |
| 8sealed | 103 | Waymon, Larry (1462) | Won 2-0 | +171539 |
| 9sealed | 47 | Jacobson, Josh (1664) | Lost 1-2 | -161523 |
| top | average opponent: 1565record: 4-3 | new rating: 1523 | ||