Costa, Doc
Current rating: 1462
Record: 3-5
| Grand Prix Sao Paulo 2019 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 187 | De Oliveira Rosa, Lucas Rodolfo (1500) | Lost 0-2 | -181482 |
| 2modern | 421 | Lima Rolim, Gabriel (1511) | Won 2-1 | +191501 |
| 3modern | 522 | Godinho, Luiz Felipe (1475) | Lost 0-2 | -191482 |
| 4modern | 502 | Mussalem Smethurst, Diogo (1610) | Lost 0-2 | -161466 |
| 5modern | 537 | Nascimento, Lucas (1394) | Won 2-0 | +171483 |
| 6modern | 481 | De Souza Ribeiro, Luiz Phellipe (1465) | Won 2-0 | +181501 |
| 7modern | 330 | Ruiz Furtado, Andre (1499) | Lost 1-2 | -181483 |
| 8modern | 322 | D'Imberio Neto, Leone (1357) | Lost 0-2 | -211462 |
| average opponent: 1476record: 3-5 | new rating: 1462 | |||