Cobb, Troy
Current rating: 1491
Record: 2-3
| Grand Prix Sacramento 2018 (M19 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 185 | Schick, Mark (1727) | Lost 0-2 | -141486 |
| 2sealed | 319 | Machado, Zachary (1479) | Won 2-0 | +181504 |
| 3sealed | 416 | Kiepert, Kyle (1460) | Lost 0-2 | -191485 |
| 4sealed | 513 | Winans, Michael (1482) | Won 2-0 | +181503 |
| 5sealed | 432 | Thomas, Braham (1825) | Lost 0-2 | -121491 |
| average opponent: 1595record: 2-3 | new rating: 1491 | |||