Thomson, David J
Current rating: 1413
| Grand Prix Portland 2017 (XLN standard) | starting rating: 1450 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 324 | Lloyd, Rayo (1463) | Won 2-1 | +181468 |
| 2standard | 33 | Penrod, Jacob (1491) | Lost 1-2 | -181450 |
| 3standard | 499 | Tellez, Manuel (1318) | Lost 1-2 | -201430 |
| 4standard | 548 | Thompson, Izak (1485) | Lost 0-2 | -171413 |
| top | average opponent: 1439record: 1-3 | new rating: 1413 | ||
| Grand Prix Portland 2013 (modern) | starting rating: 1466 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 49 | Doran, Mike (1464) | Won 2-0 | +181484 |
| 2modern | 83 | Fouquet, Benjamin (1500) | Won 2-1 | +181502 |
| 3modern | 114 | Stinnett, Benjamin (1527) | Lost 0-2 | -181484 |
| 4modern | 202 | Falbo, Kit (1520) | Lost 0-2 | -171467 |
| 5modern | 337 | Eng, Jordan (1500) | Lost 0-2 | -171450 |
| top | average opponent: 1502record: 2-3 | new rating: 1450 | ||
| Grand Prix Seattle-Tacoma 2012 (DKA limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 43 | Charnell, Sandy H (1500) | Won 2-1 | +181518 |
| 3sealed | 152 | Moldenhauer, Ryan E (1581) | Lost 0-2 | -171501 |
| 4sealed | 317 | Morales, Andrew (1519) | Lost 0-2 | -181483 |
| 5sealed | 427 | Ramsey, Logan (1500) | Lost 1-2 | -171466 |
| top | average opponent: 1525record: 1-3 | new rating: 1466 | ||