Mortensen, Isaiah
Current rating: 1476
| Grand Prix Vancouver 2018 (UMA limited) | starting rating: 1493 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 176 | Leatherdale, Bailey (1626) | Won 2-0 | +201513 |
| 2sealed | 210 | Gibson, Garrett (1416) | Lost 0-2 | -201493 |
| 3sealed | 281 | Stacey, Simon (1437) | Won 2-0 | +171510 |
| 4sealed | 227 | Brandl, Nickolas (1484) | Lost 0-2 | -181492 |
| 5sealed | 313 | Ueda, Jay (1600) | Lost 0-2 | -161476 |
| top | average opponent: 1513record: 2-3 | new rating: 1476 | ||
| Grand Prix Portland 2018 (modern) | starting rating: 1510 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 306 | Cottell, Peter (1559) | Lost 1-2 | -171493 |
| 2modern | 520 | Driscoll, Dylan (1487) | Won 2-0 | +181511 |
| 3modern | 655 | Betschart, Brad (1552) | Lost 0-2 | -171494 |
| 4modern | 611 | Yob, Carl (1456) | Won 2-1 | +171511 |
| 5modern | 413 | Hathaway, Shan (1501) | Lost 1-2 | -181493 |
| top | average opponent: 1511record: 2-3 | new rating: 1493 | ||
| Grand Prix Seattle 2018 (legacy) (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 410 | Petter, Dylan (1432) | Lost 0-2 | -191481 |
| 2legacy | 612 | Buckingham, Thomas (1469) | Won 2-0 | +181499 |
| 3legacy | 564 | Gunnell, Garrett (1504) | Won 2-1 | +181517 |
| 4legacy | 199 | Kaipainen, Anttu (1439) | Won 2-0 | +161533 |
| 5legacy | 337 | Oien, Christopher (1767) | Won 2-0 | +221555 |
| 6legacy | 67 | Demestrio, Joe (1941) | Lost 0-2 | -111544 |
| 7legacy | 204 | Kirby, Zachary (1639) | Lost 1-2 | -161528 |
| 8legacy | 334 | Nash, Joe (1538) | Lost 0-2 | -181510 |
| top | average opponent: 1591record: 4-4 | new rating: 1510 | ||