Willybold, Yan
Current rating: 1555
Record: 6-3
| Grand Prix Sao Paulo 2012 (M13 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 158 | Ferry, Gabriel (1560) | Won 2-0 | +191519 |
| 2sealed | 11 | Zerbinatti, Edson (1536) | Lost 0-2 | -181501 |
| 3sealed | 155 | Cadermatori, Matheus (1500) | Won 2-0 | +181519 |
| 4sealed | 97 | Camara, Aristides (1669) | Won 2-0 | +211540 |
| 5sealed | 72 | Miyamoto, Henrique (1537) | Won 2-0 | +181558 |
| 6sealed | 84 | Cesarino da Rosa, Lenon Furtado (1538) | Won 2-0 | +181576 |
| 7sealed | 12 | Crivellente Cristo, Cristiano (1561) | Lost 0-2 | -191557 |
| 8sealed | 51 | Ancelmo, Fabio (1563) | Lost 1-2 | -171540 |
| 9sealed | 79 | Pacheco, Marcus (1403) | Won 2-1 | +151555 |
| average opponent: 1541record: 6-3 | new rating: 1555 | |||