Haffner, Devin
Current rating: 1525
Record: 3-2-1
| Grand Prix Minneapolis 2018 (M19 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 342 | Schroeder, Justin (1598) | Draw 1-1 | +21502 |
| 2sealed | 274 | Arreaga Ayala, Hugo Alpert (1536) | Lost 0-2 | -181484 |
| 3sealed | 540 | Steiner, Patrick (1500) | Won 2-0 | +191503 |
| 4sealed | 451 | McHenry, Michael (1500) | Won 2-1 | +181521 |
| 5sealed | 322 | Crawford, Benson (1517) | Won 2-1 | +181539 |
| 6sealed | 202 | Cho, Joshua (1775) | Lost 1-2 | -141525 |
| average opponent: 1571record: 3-2-1 | new rating: 1525 | |||