Luis Koslovoski, Jeferson
Current rating: 1431
Record: 4-8-1
| Grand Prix Porto Alegre 2017 (AER standard) | starting rating: 1519 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 36 | Roque, Francisco (1536) | Draw 1-1 | +11520 |
| 4standard | 73 | Santos, Mauro Fylipe (1506) | Lost 1-2 | -191501 |
| 5standard | 144 | Matoso Mendes, Luis Fernando (1535) | Lost 1-2 | -171484 |
| 6standard | 179 | Heringer, Diogo (1498) | Lost 1-2 | -181466 |
| 7standard | 208 | Rodrigues, Luis [BRA] (1484) | Lost 1-2 | -171449 |
| 8standard | 196 | Jesus, Rafael (1464) | Lost 0-2 | -181431 |
| average opponent: 1504record: 0-5-1 | new rating: 1431 | |||
| Grand Prix Rio de Janeiro 2013 (GTC standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 254 | Trujillo, Rodrigo (1554) | Won 2-0 | +191519 |
| 2standard | 128 | Akio Yanagiura, Matheus (1477) | Lost 0-2 | -191500 |
| 3standard | 238 | Giantin Scacchetti, Gabriel (1501) | Won 2-1 | +181518 |
| 4standard | 192 | Karl, Leonardo (1519) | Won 2-1 | +181536 |
| 5standard | 101 | Fernandes Ferraz, Diego (1651) | Lost 0-2 | -161520 |
| 6standard | 124 | Valenzuela, Cristian (1464) | Lost 0-2 | -191501 |
| 7standard | 193 | de Lima, Marcus (1500) | Won 2-1 | +181519 |
| average opponent: 1524record: 4-3 | new rating: 1519 | |||