Gaffney, Sean
Current rating: 1464
Record: 3-5
| Grand Prix Portland 2018 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 448 | Swedberg, Andrew (1500) | Lost 1-2 | -181482 |
| 2modern | 564 | Stene, Ryan (1482) | Lost 1-2 | -181464 |
| 3modern | 779 | Lubiszewski, Christopher (1464) | Won 2-1 | +181482 |
| 4modern | 760 | Gidlof, Dylan (1661) | Lost 0-2 | -151467 |
| 5modern | 687 | Johnson, Darren (1460) | Lost 1-2 | -181449 |
| 6modern | 654 | Davis, Evan (1447) | Won 2-1 | +181467 |
| 7modern | 488 | Grey, Sean (1419) | Lost 1-2 | -191448 |
| 8modern | 416 | Pyle, Milan (1335) | Won 2-0 | +161464 |
| average opponent: 1471record: 3-5 | new rating: 1464 | |||