Alderman, Justin
Current rating: 1503
Record: 15-16
| Grand Prix Tampa Bay 2019 (modern) | starting rating: 1474 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 200 | Olmstead, Mike (1540) | Won 2-0 | +191493 |
| 2modern | 138 | Hendrix, Alex (1517) | Won 2-0 | +181511 |
| 3modern | 189 | Beeghly, Devin (1586) | Won 2-1 | +201531 |
| 4modern | 98 | Dunham Iii, Donald (1558) | Lost 0-2 | -181513 |
| 5modern | 83 | Yoo, Bradley (1944) | Lost 1-2 | -101503 |
| top | average opponent: 1629record: 3-2 | new rating: 1503 | ||
| Grand Prix Las Vegas 2015 (1) (MM2 limited) | starting rating: 1509 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 78 | Godfrey, Victoria (1536) | Won 2-0 | +181527 |
| 4sealed | 61 | Young, Brian (1517) | Lost 0-2 | -181509 |
| 5sealed | 41 | Couture, Mathieu (1503) | Lost 0-2 | -181491 |
| 6sealed | 150 | Shomer, Austin (1521) | Lost 1-2 | -171474 |
| top | average opponent: 1519record: 1-3 | new rating: 1474 | ||
| Grand Prix Miami 2015 (FRF standard) | starting rating: 1448 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 335 | Fernandez, David (1405) | Won 2-1 | +181466 |
| 2standard | 232 | Rodriguez, Michael (1499) | Won 2-0 | +181484 |
| 3standard | 115 | Birdsong, Joseph (1608) | Lost 0-2 | -151469 |
| 4standard | 187 | Egan, Kevin (1519) | Won 2-0 | +181487 |
| 5standard | 189 | Mendez, Daniel (1526) | Lost 0-2 | -171470 |
| 6standard | 359 | Mondragon, Gabriel (1536) | Won 2-0 | +191489 |
| 7standard | 185 | Miranda, Francisco (1473) | Won 2-1 | +181507 |
| 8standard | 111 | Grimes, Richard (1577) | Won 2-0 | +191526 |
| 9standard | 73 | Cross, Phillip (1558) | Lost 1-2 | -171509 |
| top | average opponent: 1522record: 6-3 | new rating: 1509 | ||
| Grand Prix Orlando 2014 (KTK limited) | starting rating: 1460 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 358 | Haas, Joshua (1500) | Lost 1-2 | -181442 |
| 2sealed | 385 | Meunier, Matthew (1482) | Won 2-1 | +191461 |
| 3sealed | 270 | England, Matthew (1647) | Won 2-0 | +211482 |
| 4sealed | 305 | Zagalsky, Alejo (1561) | Lost 0-2 | -161466 |
| 5sealed | 321 | Webb, Anthony (1501) | Lost 0-2 | -181448 |
| top | average opponent: 1538record: 2-3 | new rating: 1448 | ||
| Grand Prix Miami 2013 (DGM standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 78 | Stanton, Brian R (1500) | Lost 0-2 | -181482 |
| 2standard | 449 | Collins, Lowell (1482) | Lost 1-2 | -181464 |
| 3standard | 494 | Lear, Patrick (1482) | Lost 1-2 | -181446 |
| 4standard | 557 | Jones, Eric (1572) | Won 2-0 | +211467 |
| 5standard | 481 | Tam, Wai (997) | Won 2-0 | +101477 |
| 6standard | 405 | Baugh, Walter (1505) | Won 2-0 | +181495 |
| 7standard | 290 | Klug, Andrew (1499) | Lost 1-2 | -181477 |
| 8standard | 293 | Rosberg, Sean (1496) | Lost 0-2 | -171460 |
| top | average opponent: 1442record: 3-5 | new rating: 1460 | ||