Costa, Lucas
Current rating: 1446
| Grand Prix Buenos Aires 2014 (BNG standard) | starting rating: 1481 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 24 | Disipio, Martin (1500) | Lost 1-2 | -171464 |
| 2standard | 232 | Ramirez, Adolfo (1348) | Lost 0-2 | -201444 |
| 3standard | 417 | Molina, Kevin (1464) | Won 2-0 | +181462 |
| 4standard | 358 | Mariscal, Patricio (1513) | Lost 0-2 | -171445 |
| 5standard | 375 | Carrizo, Ivan Alejandro (1446) | Draw 1-1 | 01445 |
| 6standard | 330 | Arrostito, Andres (1483) | Won 2-1 | +191464 |
| 7standard | 268 | Chillon, Cesar (1484) | Lost 0-2 | -181446 |
| top | average opponent: 1463record: 2-4-1 | new rating: 1446 | ||
| Grand Prix Santiago 2013 (THS standard) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 183 | Romero, Miguel (1482) | Lost 0-2 | -181464 |
| 2modern | 220 | Snaider, Jhonatan (1437) | Draw 1-1 | -11463 |
| 3modern | 298 | Ovalle Vasquez, Gonzalo (1465) | Lost 0-2 | -181445 |
| 4modern | 339 | Ramirez, Adolfo (1412) | Won 2-1 | +181463 |
| 5modern | 290 | Huanca, Alfonso (1466) | Won 2-0 | +181481 |
| 6modern | 227 | Riquelme, Guillermo (1501) | Lost 1-2 | -181463 |
| 7modern | 239 | Arancibia, Rodrigo (1484) | Won 2-1 | +181481 |
| top | average opponent: 1464record: 3-3-1 | new rating: 1481 | ||
| Grand Prix Sao Paulo 2012 (M13 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 4 | Ribeiro, Gabriel (1500) | Draw 1-1 | 01500 |
| 2sealed | 186 | Trujillo, Rodrigo (1500) | Lost 1-2 | -181482 |
| 3sealed | 275 | Amauim, Felipe (1482) | Won 2-1 | +181500 |
| 4sealed | 214 | Guaraldo Torello Viera, Fernando (1478) | Lost 0-2 | -181482 |
| top | average opponent: 1490record: 1-2-1 | new rating: 1482 | ||