Courtney, Sean
Current rating: 1581
Record: 9-6
| Grand Prix Hartford 2018 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 65 | Biekert, Nicolas (1468) | Won 2-1 | +171517 |
| 2modern | 100 | Lussier, Griffin (1540) | Won 2-0 | +191536 |
| 3modern | 258 | Pelaez, Michael (1536) | Won 2-0 | +181554 |
| 4modern | 111 | Wu, Kevin (1561) | Won 2-0 | +181572 |
| 5modern | 16 | McGuire, Sean (1575) | Won 2-0 | +181590 |
| 6modern | 33 | Campen, Steve (1628) | Won 2-0 | +191609 |
| 7modern | 10 | Friedman, Gene (1579) | Lost 0-2 | -191590 |
| 8modern | 82 | Jones, Kevin (1889) | Won 2-1 | +231613 |
| 9modern | 216 | De La Cruz, Jason (1624) | Won 2-1 | +191632 |
| 10modern | 217 | De Los Santos, Julian (1861) | Lost 0-2 | -141618 |
| 11modern | 243 | Sifuentes, Francisco (1937) | Won 2-0 | +231641 |
| 12modern | 223 | Tiu, Oliver (2002) | Lost 0-2 | -111630 |
| 13modern | 243 | Yeh, Andy (1634) | Lost 1-2 | -181612 |
| 14modern | 279 | Pogorzhelsky, Alessandro (1828) | Lost 1-2 | -141598 |
| 15modern | 279 | Hand, Dylan (1650) | Lost 0-2 | -171581 |
| average opponent: 1687record: 9-6 | new rating: 1581 | |||