Niemayer, Marcelo
Current rating: 1449
Record: 2-5-1
| Grand Prix Sao Paulo 2019 (modern) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 313 | Gallinaro Maranho, Julio (1500) | Won 2-1 | +181482 |
| 2modern | 157 | Rodrigues, Mario (1518) | Lost 1-2 | -171465 |
| 3modern | 364 | Siqueira, Vitor de Paiva (1505) | Lost 0-2 | -171448 |
| 4modern | 537 | Becker Friess, Thiago (1479) | Won 2-1 | +181466 |
| 5modern | 313 | Pinto De Oliveira, Michel Angelo (1499) | Lost 1-2 | -171449 |
| average opponent: 1500record: 2-3 | new rating: 1449 | |||
| Grand Prix Sao Paulo 2018 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 537 | Nunes da Silva, Rafael (1522) | Draw 1-1 | 01500 |
| 2modern | 359 | Valerio, Carlos (1500) | Lost 0-2 | -181482 |
| 3modern | 574 | Bertoletti, Alexandre (1447) | Lost 0-2 | -181464 |
| average opponent: 1490record: 0-2-1 | new rating: 1464 | |||