Costa, Jansen
Current rating: 1412
Record: 1-6
| Grand Prix Sao Paulo 2019 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 250 | Tadeu Jardim, Wagner (1500) | Lost 0-2 | -181482 |
| 2modern | 444 | Tiemi Alkmim Morishita, Julia (1536) | Lost 0-2 | -171465 |
| 3modern | 587 | Vieira, Rullyan Henrique (1510) | Lost 0-2 | -171448 |
| 4modern | 645 | Chaachaa, Elias (1460) | Won 2-0 | +181466 |
| 5modern | 563 | Silva Bodevan, Rodrigo (1467) | Lost 0-2 | -181448 |
| 6modern | 489 | Olteanu, Alexandru (1446) | Lost 0-2 | -181430 |
| 7modern | 408 | Rodrigo Cola, Plinio (1430) | Lost 0-2 | -181412 |
| average opponent: 1478record: 1-6 | new rating: 1412 | |||