Gucker, Gabriel
Current rating: 1493
Record: 7-8
| Grand Prix Portland 2018 (modern) | starting rating: 1444 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 461 | McNamee, Conlan (1520) | Won 1-0 | +201464 |
| 2modern | 130 | Dao, Justin (1516) | Won 2-0 | +181482 |
| 3modern | 17 | Gergen, Bill (1413) | Won 2-0 | +171499 |
| 4modern | 39 | Rubin, Aaron (1976) | Lost 0-2 | -101489 |
| 5modern | 263 | Hatch, Alex (1505) | Won 2-0 | +191508 |
| 6modern | 81 | South, Tyler (1604) | Lost 0-2 | -171491 |
| 7modern | 237 | Lange, Brandon (1548) | Lost 0-2 | -171474 |
| 8modern | 276 | McDonough, Chris (1514) | Won 2-0 | +191493 |
| average opponent: 1575record: 5-3 | new rating: 1493 | |||
| Grand Prix Portland 2016 (EMN standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 136 | Carstensen, Matthew (1465) | Lost 0-2 | -191481 |
| 2standard | 603 | Kovacich, Robert (1411) | Lost 0-2 | -191462 |
| 3standard | 775 | Peterson, Zachary (1464) | Lost 1-2 | -181444 |
| 4standard | 781 | Miller, Brian (1451) | Won 2-1 | +181462 |
| 5standard | 669 | Mitchell, Micah (1463) | Won 2-0 | +181480 |
| 6standard | 590 | Francis, Mitchell (1492) | Lost 1-2 | -181462 |
| 7standard | 561 | Seaton, Carl (1444) | Lost 0-2 | -181444 |
| average opponent: 1456record: 2-5 | new rating: 1444 | |||