Guazzelli, Pedro
Current rating: 1478
Record: 4-5
| Grand Prix Porto Alegre 2017 (AER standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 29 | Gajko, Marcelo (1500) | Won 2-0 | +181518 |
| 2standard | 99 | Saldivar, Manuel (1539) | Won 2-1 | +181536 |
| 3standard | 91 | Karam, Vinicius (1594) | Won 2-1 | +191555 |
| 4standard | 49 | Schwalb, Natalie (1388) | Lost 0-2 | -211534 |
| 5standard | 68 | Gajko, Thiago (1504) | Won 2-0 | +181552 |
| 6standard | 31 | Bessa, Julio (1535) | Lost 0-2 | -181534 |
| 7standard | 117 | Paiva, Cristiano (1462) | Lost 1-2 | -201514 |
| 8standard | 116 | Valente, Vinicius (1517) | Lost 0-1 | -181496 |
| 9standard | 157 | Monteiro Da Rocha, Raphael (1499) | Lost 0-2 | -181478 |
| average opponent: 1504record: 4-5 | new rating: 1478 | |||