McCullum, Devin
Current rating: 1429
Record: 1-5
| Grand Prix Richmond 2018 (std) (M19 standard) | starting rating: 1446 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 41 | Roberts, Joel (1500) | Lost 0-2 | -171429 |
| record: 0-1 | new rating: 1429 | |||
| Grand Prix Providence 2018 (M19 standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 20 | Fry, Joshua (1511) | Lost 1-2 | -181482 |
| 2standard | 210 | Decrisantis, Andrew (1462) | Lost 1-2 | -181464 |
| 3standard | 323 | Sapia, Mark (1466) | Lost 0-2 | -181446 |
| 4standard | 333 | Lucia, Charles (1446) | Won 2-1 | +181464 |
| 5standard | 301 | Schwagenscheidt, Julius Paul (1467) | Lost 1-2 | -181446 |
| average opponent: 1471record: 1-4 | new rating: 1446 | |||