Black, Grant
Current rating: 1428
Record: 12-16
| Grand Prix Las Vegas 2019 (limited) (MH1 limited) | starting rating: 1444 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 1207 | Reed, Steve (1525) | Lost 0-2 | -171427 |
| 2sealed | 1212 | Johnson, Richard 1541 (1496) | Won 2-0 | +191446 |
| 3sealed | 1201 | Nader, John (1433) | Lost 0-2 | -181428 |
| top | average opponent: 1485record: 1-2 | new rating: 1428 | ||
| Grand Prix Phoenix 2017 (XLN limited) | starting rating: 1491 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 320 | Chiesa, Christopher (1599) | Won 2-0 | +201511 |
| 2sealed | 135 | Reinagel, Melissa (1517) | Lost 1-2 | -181493 |
| 3sealed | 434 | Arehart, Daniel (1685) | Lost 0-2 | -141479 |
| 4sealed | 162 | Mattern, William (1521) | Lost 0-2 | -171462 |
| 5sealed | 476 | Cranford, Clayton (1464) | Lost 0-2 | -181444 |
| top | average opponent: 1557record: 1-4 | new rating: 1444 | ||
| Grand Prix Albuquerque 2016 (SOI limited) | starting rating: 1531 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 60 | Terry, Christine (1500) | Lost 0-2 | -181513 |
| 2sealed | 337 | Shaw, Matt (1520) | Won 2-0 | +181531 |
| 3sealed | 423 | Sutton, Andrew (1499) | Lost 0-2 | -191512 |
| 4sealed | 461 | Reeves, Alexander (1405) | Lost 0-2 | -201492 |
| 5sealed | 505 | Cryer, Jared (1467) | Won 2-0 | +181510 |
| 6sealed | 434 | Friis, Tyler (1481) | Lost 0-2 | -191491 |
| top | average opponent: 1479record: 2-4 | new rating: 1491 | ||
| Grand Prix Las Vegas 2015 (1) (MM2 limited) | starting rating: 1537 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 218 | Thompson, Nolan (1500) | Lost 0-2 | -181519 |
| 2sealed | 394 | Smith, Holly (1450) | Won 2-0 | +161535 |
| 3sealed | 305 | Eckart, Quinn (1484) | Lost 1-2 | -191516 |
| 4sealed | 386 | Hatcher, Will (1482) | Won 2-0 | +181534 |
| 5sealed | 288 | Rohrbaugh, Robrty (1502) | Won 2-0 | +171551 |
| 6sealed | 275 | Collier, Jim (1439) | Lost 1-2 | -201531 |
| top | average opponent: 1476record: 3-3 | new rating: 1531 | ||
| Grand Prix Richmond 2014 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 279 | Rickman, Meghan (1500) | Won 2-0 | +181518 |
| 2modern | 12 | Wells, Justin (1421) | Won 2-0 | +161534 |
| 3modern | 259 | Johnson, Maxwell (1536) | Won 2-0 | +181552 |
| 4modern | 141 | Norton, Chris (1524) | Lost 0-2 | -181534 |
| 5modern | 271 | Carl, Scott (1557) | Won 2-1 | +181552 |
| 6modern | 169 | Eldridge, Benjamin (1553) | Lost 1-2 | -181534 |
| 7modern | 254 | Kwok, Cosmo (1520) | Won 2-0 | +181552 |
| 8modern | 104 | Johnson-Epstein, Jasper (1738) | Lost 0-2 | -151537 |
| top | average opponent: 1544record: 5-3 | new rating: 1537 | ||