Guaita, Silvio
Current rating: 1465
Record: 4-6
| Grand Prix Buenos Aires 2015 (DTK standard) | starting rating: 1483 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 53 | Huerta Gonzalez, Miguel (1501) | Lost 0-2 | -181465 |
| record: 0-1 | new rating: 1465 | |||
| Grand Prix Sao Paulo 2015 (DTK standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 63 | Carvalho, Bernardo (1533) | Lost 1-2 | -171483 |
| 2standard | 407 | Mota, Nilvo (1486) | Lost 0-2 | -181465 |
| 3standard | 554 | Cardoso, Jaime Donizete (1464) | Lost 1-2 | -181447 |
| 4standard | 598 | Menezes Oliveira, Wagner Felipe (1402) | Lost 1-2 | -191428 |
| 5standard | 565 | Dias Tamachiro, Sergio Henrique (1429) | Won 2-0 | +181446 |
| 6standard | 477 | Terra Portucal AdC, Ma (1446) | Won 2-0 | +181464 |
| 7standard | 388 | Pinto, Renato (1416) | Won 2-0 | +171481 |
| 8standard | 300 | Gaete Quezada, Daniel (1584) | Lost 0-2 | -161465 |
| 9standard | 249 | Santanna, Levy (1463) | Won 2-0 | +181483 |
| average opponent: 1469record: 4-5 | new rating: 1483 | |||