Vinella, John
Current rating: 1509
Record: 4-4
| Grand Prix Portland 2018 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 509 | Cabero, Paul Gerald (1463) | Won 2-1 | +171517 |
| 2modern | 417 | Scharff, Carlo (1579) | Won 2-1 | +191536 |
| 3modern | 284 | Jones, Derrick (1800) | Lost 0-2 | -131523 |
| 4modern | 265 | Showell, Nathan (1558) | Lost 1-2 | -171506 |
| 5modern | 451 | Cole, Daniel (1617) | Won 2-0 | +201526 |
| 6modern | 250 | Levchak, Tavis (1583) | Lost 1-2 | -171509 |
| 7modern | 429 | Kan, Andrew (1534) | Lost 1-2 | -181491 |
| 8modern | 385 | Black, Joseph (1484) | Won 2-0 | +181509 |
| average opponent: 1577record: 4-4 | new rating: 1509 | |||