Rosa, Joshua
Current rating: 1481
Record: 2-3
| Grand Prix Las Vegas 2018 (limited) (DOM limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 430 | Yin, Matthew (1478) | Lost 0-2 | -181482 |
| 2sealed | 1349 | Czesak, Garrett (1487) | Lost 0-2 | -181464 |
| 3sealed | 748 | Singh, Rohit (1464) | Won 2-1 | +181482 |
| 4sealed | 630 | Houle, Jesse (1434) | Won 2-0 | +171499 |
| 5sealed | 481 | Comber, Geoffrey (1490) | Lost 1-2 | -181481 |
| average opponent: 1471record: 2-3 | new rating: 1481 | |||