Zimmer, Marco Marcelo
Current rating: 1624
| Grand Prix Porto Alegre 2004 (COK limited) | starting rating: 1558 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 27 | Frias, Daniel (1500) | Won 2-0 | +171575 |
| 3sealed | 35 | Silveira, Robson (1500) | Won 2-1 | +161591 |
| 4sealed | 30 | Almeida, Marcio (1501) | Won 2-0 | +171608 |
| 5sealed | 6 | Sampaio, Cassiano (1553) | Won 2-0 | +171625 |
| 6sealed | 3 | Saredo, Adrian (1569) | Won 2-0 | +171642 |
| 7sealed | 2 | Terra, Hugo (1523) | Won 2-0 | +151657 |
| 8rochester | 2 | Coqueiro, Rafael S (1498) | Won 2-1 | +161673 |
| 9rochester | 14 | Barbero, Jose (1876) | Lost 0-2 | -151658 |
| 10rochester | 8 | Kina, Mauro (1713) | Lost 0-2 | -171641 |
| 11rochester | 15 | Reinaldo, Cesar (1558) | Lost 1-2 | -191622 |
| 12rochester | 11 | Ostrovich, Diego (1784) | Won 2-1 | +211643 |
| 13rochester | 23 | Barcellos, Guilherme (1612) | Lost 0-2 | -191624 |
| top | average opponent: 1599record: 8-4 | new rating: 1624 | ||
| Grand Prix Sao Paulo 2002 (JUD standard) | starting rating: 1467 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 39 | Inacio, Eliton (1610) | Draw 1-1 | +21469 |
| 4standard | 40 | Jeudon, Florent (1793) | Lost 0-2 | -121457 |
| 5standard | 79 | Calixto De Sousa, Marcos Hen (1517) | Won 2-0 | +191476 |
| 6standard | 48 | Silva, Daniel Galvao (1536) | Won 2-0 | +191495 |
| 7standard | 30 | Goes, Marcelo (1553) | Won 2-0 | +191514 |
| 8standard | 17 | Casatti, Vagner William (1578) | Lost 0-2 | -171497 |
| 9standard | 24 | Matos, Gustavo Ferrei De (1552) | Won 2-0 | +191516 |
| 10standard | 23 | Pustilnik, Michael (1841) | Lost 0-2 | -121504 |
| 11standard | 26 | Possato, William (1591) | Won 2-1 | +201524 |
| 12standard | 18 | Felsberg, Thomas (1474) | Won 2-1 | +171541 |
| 13standard | 13 | Longo Junior, Sergio (1474) | Won 2-0 | +171558 |
| top | average opponent: 1593record: 7-3-1 | new rating: 1558 | ||
| Grand Prix Rio de Janeiro 2001 (PLS limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 10 | Carisimo, Oscar (1563) | Lost 1-2 | -171483 |
| 5sealed | 26 | Moro, Andres (1469) | Lost 1-2 | -181465 |
| 6sealed | 60 | krok Franco, Flavio (1516) | Lost 1-2 | -171448 |
| 7sealed | 81 | Pessoa de Oliveira, Marcos H (1499) | Won 0-0 | +191467 |
| top | average opponent: 1512record: 1-3 | new rating: 1467 | ||