Lamantia, Robert
Current rating: 1425
Record: 5-9-1
| Grand Prix Oklahoma City 2019 (ELD standard) | starting rating: 1501 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 107 | Masquelier, Louis (1428) | Lost 1-2 | -201481 |
| 2standard | 101 | Messenger, Timothy (1540) | Lost 1-2 | -161465 |
| 3standard | 152 | Harrison, Jason (1345) | Won 2-0 | +151480 |
| 4standard | 139 | Cortez, Ryan (1485) | Lost 1-2 | -181462 |
| 5standard | 142 | Lewis, Caleb (1396) | Lost 0-0 | -191443 |
| 6standard | 132 | Johnson, Roger (1428) | Lost 0-2 | -181425 |
| average opponent: 1437record: 1-5 | new rating: 1425 | |||
| Grand Prix Denver 2017 (HOU standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 375 | Bell, Rebecca (1556) | Lost 1-2 | -171483 |
| 2standard | 287 | Eaton, Ryan (1577) | Lost 0-2 | -161467 |
| 3standard | 477 | Burke, Julian (1529) | Lost 0-2 | -171450 |
| 4standard | 552 | Ferrell, Jason (1445) | Lost 0-2 | -181432 |
| 5standard | 528 | Beck, Joanne (1296) | Won 2-0 | +151447 |
| 6standard | 488 | Ruthem, Justin (1452) | Won 2-1 | +181465 |
| 7standard | 418 | Vazquez, Antonio (1463) | Draw 1-1 | 01465 |
| 8standard | 365 | Vasquez, Jake (1447) | Won 2-0 | +181483 |
| 9standard | 297 | Wright, Donnie (1469) | Won 2-0 | +181501 |
| average opponent: 1470record: 4-4-1 | new rating: 1501 | |||