Marsal, Brian
Current rating: 1380
| Grand Prix Detroit 2019 (M20 limited) | starting rating: 1414 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 128 | Hulliberger, Easton (1500) | Lost 0-2 | -161398 |
| 2sealed | 233 | Rich, Jacob (1462) | Won 2-0 | +191417 |
| 3sealed | 257 | Sanchez, Nicholas (1438) | Lost 0-2 | -181399 |
| 4sealed | 285 | Hudson, Nathan (1337) | Lost 0-2 | -191380 |
| top | average opponent: 1434record: 1-3 | new rating: 1380 | ||
| Grand Prix Cleveland 2019 (RNA limited) | starting rating: 1487 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 103 | Silvestri, Greg (1500) | Lost 0-2 | -181469 |
| 2sealed | 377 | Shapiro, Alec (1474) | Lost 0-2 | -181451 |
| 3sealed | 498 | Byers, Dylan (1481) | Lost 1-2 | -171434 |
| 4sealed | 552 | Amick, Anthony (1365) | Lost 0-2 | -201414 |
| top | average opponent: 1455record: 0-4 | new rating: 1414 | ||
| Grand Prix Cleveland 2015 (FRF limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 230 | Kloth, Cody (1500) | Won 2-1 | +181518 |
| 2sealed | 118 | Bower, Richard (1387) | Lost 1-2 | -201498 |
| 3sealed | 595 | Simcox, Adam (1500) | Won 2-0 | +181516 |
| 4sealed | 379 | Lanigan, Mike (1712) | Lost 1-2 | -151501 |
| 5sealed | 544 | Rodemann, Dan (1691) | Lost 1-2 | -141487 |
| top | average opponent: 1558record: 2-3 | new rating: 1487 | ||