Santanna, Nathan
Current rating: 1517
Record: 7-7
| Grand Prix Porto Alegre 2017 (AER standard) | starting rating: 1520 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 29 | Maciel, Julio (1620) | Won 2-0 | +201540 |
| 4standard | 40 | Crusius, Matheus (1652) | Won 2-0 | +201560 |
| 5standard | 24 | Dos Anjos, Mateus (1769) | Lost 0-2 | -141546 |
| 6standard | 72 | Coquito Pereira, Pedro Paulo (1532) | Won 2-1 | +171563 |
| 7standard | 46 | Goncalves, Mateus (1575) | Lost 0-2 | -171546 |
| 8standard | 51 | Navas, Luis (1736) | Lost 1-2 | -151531 |
| 9standard | 72 | Coquemala Filho, Walter (1736) | Lost 0-2 | -141517 |
| average opponent: 1660record: 3-4 | new rating: 1517 | |||
| Grand Prix Porto Alegre 2015 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 46 | Feijo, Matheus (1550) | Lost 1-2 | -171483 |
| 4modern | 148 | Ferreira Pereira, Joao Felipe (1454) | Won 2-1 | +171500 |
| 5modern | 142 | Rosseto, Matheus (1455) | Won 2-1 | +181518 |
| 6modern | 47 | Carrion, Ignacio (1490) | Won 2-1 | +171535 |
| 7modern | 47 | Porto, Murilo Malta (1538) | Lost 1-2 | -181517 |
| 8modern | 66 | Ferry, Sergio (1590) | Won 2-0 | +191536 |
| 9modern | 52 | Teixeira Junior, Edson (1630) | Lost 1-2 | -161520 |
| average opponent: 1530record: 4-3 | new rating: 1520 | |||