Shawn, David
Current rating: 1551
| Grand Prix Columbus 2019 (modern) | starting rating: 1593 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 58 | Fleck, Sean (1517) | Won 2-0 | +161609 |
| 3modern | 89 | Lynn, Ian (1538) | Lost 0-2 | -191590 |
| 4modern | 169 | Burkholder, Abby (1519) | Won 2-1 | +171607 |
| 5modern | 109 | Cole, Bryan (1591) | Lost 0-2 | -191588 |
| 6modern | 186 | Semeyn, Jonathan (1592) | Lost 0-2 | -181570 |
| 7modern | 157 | Puett, Aaron (1504) | Lost 0-2 | -191551 |
| top | average opponent: 1543record: 2-4 | new rating: 1551 | ||
| Grand Prix Cleveland 2019 (RNA limited) | starting rating: 1526 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 29 | Nice Jr, Daniel (1500) | Won 2-1 | +181544 |
| 2sealed | 129 | Bartlett, Greg (1622) | Won 2-1 | +191563 |
| 3sealed | 207 | DiMaria, Henry (1470) | Won 2-0 | +161579 |
| 4sealed | 28 | Edelman, Charles (1638) | Lost 1-2 | -171562 |
| 5sealed | 119 | David, Jason (1537) | Won 2-1 | +181580 |
| 6sealed | 172 | Ernst, David (1544) | Lost 0-2 | -191561 |
| 7sealed | 131 | Blasco, Joren (1647) | Won 2-0 | +201581 |
| 8sealed | 181 | Taylor, Joshua (1787) | Won 2-0 | +221603 |
| 9sealed | 105 | Elenbogen, Andrew (2078) | Lost 1-2 | -101593 |
| top | average opponent: 1647record: 6-3 | new rating: 1593 | ||
| Grand Prix Detroit 2016 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 447 | Wang, Shuo (1487) | Lost 0-2 | -181482 |
| 2modern | 666 | Falkner, Kyle (1496) | Won 2-0 | +181500 |
| 3modern | 860 | Cowden, Nick (1577) | Won 2-0 | +191519 |
| 4modern | 683 | Soper, Russel (1571) | Won 2-0 | +191538 |
| 5modern | 235 | Hickok, Jacob (1510) | Won 2-1 | +181556 |
| 6modern | 263 | Cornell, Scott (1524) | Won 2-0 | +171573 |
| 7modern | 42 | Berman, Hunter (1583) | Lost 1-2 | -181555 |
| 8modern | 153 | Branson, Kevin (1575) | Won 2-0 | +191574 |
| 9modern | 80 | Wilt, Carl (1527) | Lost 1-2 | -191555 |
| 10modern | 189 | Allcock, Trever (1459) | Lost 1-2 | -201535 |
| 11modern | 264 | Asselin, Philippe (1715) | Won 2-0 | +211556 |
| 12modern | 260 | Mitchell, Raymond (1547) | Won 2-1 | +181574 |
| 13modern | 131 | McLeskey, Kevin (1557) | Lost 0-2 | -181556 |
| 14modern | 168 | McVety, Max (1911) | Lost 1-2 | -121544 |
| 15modern | 195 | Bullock, Lance (1535) | Lost 0-2 | -181526 |
| top | average opponent: 1572record: 8-7 | new rating: 1526 | ||