Birckholz, Nicholas Alexander
Current rating: 1498
| Grand Prix Sao Paulo 2019 (modern) | starting rating: 1537 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 107 | Vaz, Lucas (1500) | Lost 0-2 | -191518 |
| 2modern | 602 | Belisario Vedia, Jose (1413) | Lost 0-2 | -201498 |
| top | average opponent: 1456record: 0-2 | new rating: 1498 | ||
| Grand Prix Porto Alegre 2004 (COK limited) | starting rating: 1519 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 85 | Fischer Fonseca, Joao Gabriel (1500) | Won 2-1 | +181537 |
| 2sealed | 17 | Basualdo, Exequiel (1518) | Won 2-0 | +171554 |
| 3sealed | 42 | Coelho Simone, Gabriel (1536) | Won 2-1 | +181572 |
| 4sealed | 16 | Olejavetzky, Pablo (1494) | Won 2-0 | +161588 |
| 5sealed | 13 | Pereira, Ivan (1573) | Lost 1-2 | -181570 |
| 6sealed | 24 | Morales, Gustavo (1553) | Lost 0-2 | -181552 |
| 7sealed | 58 | Le Saux, Rafael (1724) | Lost 0-2 | -151537 |
| top | average opponent: 1557record: 4-3 | new rating: 1537 | ||
| Grand Prix Sao Paulo 2002 (JUD standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 106 | Cantana Do Nascimento, Leona (1500) | Won 2-0 | +181518 |
| 2standard | 23 | Da Taso Mariano, Paulo (1518) | Lost 1-2 | -181500 |
| 3standard | 103 | Hino, Marcelo Yoshio (1551) | Lost 0-2 | -171483 |
| 4standard | 127 | Goncalves Coelho, Diego (1482) | Lost 0-2 | -181465 |
| 5standard | 153 | Ribeiro Rolim, Paulo (1464) | Won 2-0 | +181483 |
| 6standard | 122 | D'Umbra, George E. (1482) | Won 2-0 | +181501 |
| 7standard | 92 | Marton, Elvis Ilidio C. (1500) | Won 2-0 | +181519 |
| top | average opponent: 1500record: 4-3 | new rating: 1519 | ||