Callahan, Corey
Current rating: 1467
Record: 1-3
| Grand Prix Phoenix 2018 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 214 | Baum, Jordan (1500) | Won 2-0 | +181518 |
| 2modern | 241 | Segura, Jacob (1701) | Lost 1-2 | -151503 |
| 3modern | 544 | Chatham, Zach (1500) | Lost 1-2 | -181485 |
| 4modern | 489 | Carlson, Drew (1450) | Lost 0-2 | -181467 |
| average opponent: 1538record: 1-3 | new rating: 1467 | |||