Anderson, Ethan
Current rating: 1615
| Grand Prix Seattle 2019 (MH1 limited) | starting rating: 1540 | |||
| round | table | opponent (rating) | result | Δrating |
| A1sealed | 540 | Nuss, Jacob (1500) | Won 2-0 | +171557 |
| A2sealed | 282 | Lucas, Peyton (1521) | Lost 1-2 | -181539 |
| A3sealed | 402 | Um, Andrew (1500) | Won 2-1 | +171556 |
| A4sealed | 279 | Roeder, Ryan (1475) | Won 2-1 | +171573 |
| A5sealed | 82 | Larsson, Chris (1726) | Won 2-0 | +201593 |
| A6sealed | 112 | Rossman, Daniel (1548) | Won 2-0 | +181611 |
| A7sealed | 70 | Ward, Daniel (1771) | Won 2-1 | +201631 |
| A8sealed | 11 | Majlaton, Alex (1986) | Won 2-0 | +251656 |
| A9sealed | 442 | Swanson, Sam (1759) | Lost 0-2 | -171639 |
| draft | 66 | Byun, Chong (1793) | Won 2-1 | +211660 |
| draft | 128 | Wallerstein, Robert (1889) | Lost 1-2 | -141646 |
| draft | 139 | Davoudi, Mani (1929) | Lost 1-2 | -131633 |
| draft | 125 | Ito, Jun (1561) | Lost 1-2 | -191614 |
| draft | 150 | Genova, Daniel (1669) | Lost 1-2 | -171597 |
| draft | 141 | Mercier, Mathew (1601) | Won 2-0 | +181615 |
| top | average opponent: 1682record: 9-6 | new rating: 1615 | ||
| Grand Prix Portland 2018 (modern) | starting rating: 1494 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 565 | Eastburn, Stephen (1462) | Won 2-0 | +171511 |
| 2modern | 129 | Endres, Jordan (1591) | Lost 0-2 | -161495 |
| 3modern | 668 | Fujimoto, Shota (1480) | Won 2-1 | +171512 |
| 4modern | 343 | Estrada, Russell (1464) | Won 2-0 | +171529 |
| 5modern | 336 | Gaines, Tyler Jo (1606) | Lost 1-2 | -161513 |
| 6modern | 309 | Kim, Peter (1502) | Won 2-0 | +181531 |
| 7modern | 252 | Goddard, Maxwell (1778) | Won 2-1 | +221553 |
| 8modern | 230 | Sears, Isaac (1839) | Lost 0-2 | -131540 |
| top | average opponent: 1590record: 5-3 | new rating: 1540 | ||
| Grand Prix Seattle 2000 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 8 | Cunningham, Jeff (1606) | Won 0-0 | +201520 |
| 2extended | 49 | Smith, Clifford (1518) | Lost 0-0 | -181502 |
| 3extended | 68 | Cunningham, Jason (1500) | Won 0-0 | +181520 |
| 4extended | 82 | Price, Amber (1518) | Won 0-0 | +181538 |
| 5extended | 32 | Cade, Chris (1570) | Won 0-0 | +181556 |
| 6extended | 18 | Lavery, Joshua (1666) | Lost 0-0 | -161540 |
| 7extended | 41 | Ness, Jason 2 (1544) | Won 0-0 | +181558 |
| 8extended | 28 | Vineyard, Jared (1504) | Lost 0-0 | -191539 |
| 9extended | 14 | Clegg, Daniel (1625) | Lost 0-0 | -161523 |
| 10extended | 13 | Finkel, Jon (1908) | Lost 0-0 | -111512 |
| 11extended | 30 | Aubertin, Justin (1513) | Lost 0-0 | -181494 |
| top | average opponent: 1588record: 5-6 | new rating: 1494 | ||