Damaske, David
Current rating: 1605
Record: 23-18
| Grand Prix Portland 2019 (ELD standard) | starting rating: 1533 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 145 | Conrad, James (1523) | Won 2-0 | +181551 |
| 2standard | 41 | Prost, Andrejs (1913) | Won 2-0 | +241575 |
| 3standard | 47 | Estrada, Russell (1451) | Lost 0-0 | -201555 |
| 4standard | 112 | Liao, Ali (1523) | Won 2-0 | +171572 |
| 5standard | 64 | Williams, Benjamin (1678) | Won 2-0 | +201592 |
| 6standard | 19 | Glass, Campbell (1771) | Won 2-1 | +221614 |
| 7standard | 33 | Hoban, Liam [CAN] (1628) | Won 2-1 | +181632 |
| 8standard | 9 | Drew, Edward (1492) | Won 2-1 | +151647 |
| 9standard | 8 | Prince, Nick (1671) | Lost 1-2 | -171630 |
| 10standard | 29 | Purkes, Zach (1505) | Won 2-1 | +151645 |
| 11standard | 17 | Parrish, Joby (1813) | Lost 1-2 | -151630 |
| 12standard | 21 | Laughlin, Pierson (1872) | Won 2-1 | +231653 |
| 13standard | 11 | Ahn, Sung-Jin (1809) | Lost 0-2 | -151638 |
| 14standard | 25 | Downey, Shane (1815) | Lost 0-2 | -151623 |
| 15standard | 26 | Murahashi, Brenton (1607) | Lost 1-2 | -181605 |
| top | average opponent: 1671record: 9-6 | new rating: 1605 | ||
| Grand Prix Seattle 2018 (standard) (RIX standard) | starting rating: 1579 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 268 | Wallet, Tim (1478) | Won 2-1 | +161595 |
| 2standard | 101 | Pavelchak, Drew (1619) | Lost 0-2 | -181577 |
| 3standard | 480 | Wolfe, Ryan (1310) | Lost 0-2 | -231554 |
| 4standard | 553 | Arnold, Josh (1372) | Lost 0-2 | -211533 |
| top | average opponent: 1445record: 1-3 | new rating: 1533 | ||
| Grand Prix Portland 2017 (XLN standard) | starting rating: 1569 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 643 | Klein, Jazzy (1500) | Won 2-0 | +171586 |
| 2standard | 34 | Moore, Andrew (1516) | Lost 1-2 | -191567 |
| 3standard | 571 | Hutton, Travis (1439) | Won 2-1 | +151582 |
| 4standard | 346 | Woods, Michael (1515) | Lost 0-2 | -191563 |
| 5standard | 432 | Reasbeck, Dakota (1480) | Won 2-1 | +171580 |
| 6standard | 260 | Adams, David (1540) | Won 2-0 | +171597 |
| 7standard | 280 | Francis, Mitchell (1578) | Lost 0-2 | -181579 |
| top | average opponent: 1510record: 4-3 | new rating: 1579 | ||
| Grand Prix Portland 2016 (EMN standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 516 | Franco, Rodrigo (1568) | Won 2-0 | +191519 |
| 2standard | 48 | Mendoza, Raul (1521) | Won 2-1 | +181537 |
| 3standard | 56 | Leon, Markes (1500) | Won 2-1 | +181555 |
| 4standard | 14 | Merced, Davis (1722) | Lost 1-2 | -151540 |
| 5standard | 167 | Self, Ronald (1535) | Won 2-1 | +181558 |
| 6standard | 70 | Perez, Gaston (1810) | Won 2-1 | +221580 |
| 7standard | 41 | Annsa, Craig (1579) | Lost 0-2 | -181562 |
| 8standard | 168 | Kirschner, Ezra (1563) | Lost 0-2 | -181544 |
| 9standard | 291 | Swiney, Bruce (1598) | Won 0-0 | +191563 |
| 10standard | 130 | Carr, Colin (1657) | Won 2-0 | +201583 |
| 11standard | 120 | West, Alexander (1784) | Won 2-1 | +211604 |
| 12standard | 87 | Martin, Camron (1594) | Lost 1-2 | -181586 |
| 13standard | 122 | Murphy, Chris (1598) | Won 2-0 | +181604 |
| 14standard | 64 | Killeen, Tristan (1646) | Lost 1-2 | -171587 |
| 15standard | 105 | Moreno, Nicholas (1589) | Lost 1-2 | -181569 |
| top | average opponent: 1618record: 9-6 | new rating: 1569 | ||