Cobb, Brandon
Current rating: 1496
| Grand Prix Las Vegas 2018 (modern) (modern) | starting rating: 1538 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 500 | Fitzgerald, Devin (1448) | Won 2-0 | +171555 |
| 2modern | 186 | Puhala, Joshua (1510) | Lost 1-2 | -191536 |
| 3modern | 751 | Everett, Stephen (1447) | Lost 0-2 | -201516 |
| 4modern | 825 | Phillips, Kyle (1385) | Lost 1-2 | -201496 |
| top | average opponent: 1448record: 1-3 | new rating: 1496 | ||
| Grand Prix Phoenix 2018 (modern) | starting rating: 1544 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 172 | Peterson, Jackson (1506) | Won 2-1 | +171561 |
| 2modern | 125 | Nalder, Tres (1521) | Lost 1-2 | -191542 |
| 3modern | 377 | Savoia, Michael (1489) | Won 2-0 | +171559 |
| 4modern | 427 | Hayes, Brook (1476) | Won 2-1 | +171576 |
| 5modern | 278 | Cutlip, Austin (1475) | Won 2-0 | +161592 |
| 6modern | 45 | Smith, Pierre (1498) | Lost 1-2 | -201572 |
| 7modern | 209 | Sounakhen, Saxon (1581) | Lost 1-2 | -181554 |
| 8modern | 214 | Schlesinger, Gal (1669) | Lost 0-2 | -161538 |
| top | average opponent: 1527record: 4-4 | new rating: 1538 | ||
| Grand Prix San Diego 2015 (ORI standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 384 | Haker, Steven (1513) | Won 2-1 | +181518 |
| 2standard | 203 | Hickey, Bryan (1476) | Won 2-0 | +171535 |
| 3standard | 254 | Weitz, Benjamin (1971) | Lost 1-2 | -101525 |
| 4standard | 253 | Li, Maxwell (1663) | Draw 1-1 | +21527 |
| 5standard | 306 | Drews, Ken (1493) | Won 2-1 | +181545 |
| 6standard | 197 | Sarkissian, Serge (1509) | Won 2-0 | +171562 |
| 7standard | 128 | Gonzalez, Giovanny (1537) | Lost 1-2 | -181544 |
| top | average opponent: 1595record: 4-2-1 | new rating: 1544 | ||