Cobb, Andy
Current rating: 1519
Record: 4-3
| Grand Prix Portland 2018 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 572 | Brunson, Damyan (1630) | Lost 0-2 | -161484 |
| 2modern | 668 | Donahue, Caleb (1482) | Won 2-0 | +181502 |
| 3modern | 551 | McBride, Jeremy (1478) | Lost 1-2 | -181484 |
| 4modern | 748 | Cloyd, Ian (1426) | Won 2-0 | +171501 |
| 5modern | 544 | Powser, Robert L. (1502) | Won 2-0 | +181519 |
| 6modern | 267 | Sprunger, Brock (1534) | Lost 0-2 | -181501 |
| 7modern | 374 | Underwood, Chandler (1494) | Won 2-0 | +181519 |
| average opponent: 1506record: 4-3 | new rating: 1519 | |||