Guilherme Colombo, Diego
Current rating: 1513
Record: 12-12
| Grand Prix Porto Alegre 2017 (AER standard) | starting rating: 1486 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 14 | Silveira Baum, Edson (1500) | Won 2-1 | +181504 |
| 2standard | 49 | Morales, Nicolas (1732) | Lost 0-2 | -141490 |
| 3standard | 229 | Milan, Leandro (1514) | Won 2-1 | +191509 |
| 4standard | 161 | Barciella, Francisco (1552) | Won 2-0 | +191528 |
| 5standard | 122 | Navas, Luis (1723) | Lost 0-2 | -151513 |
| 6standard | 103 | Correa Koeppe, Richard (1565) | Won 2-0 | +191532 |
| 7standard | 106 | Seidl, Fernando (1478) | Won 2-0 | +171549 |
| 8standard | 58 | Bachmann, Oscar Mathias (1597) | Lost 0-2 | -171532 |
| 9standard | 84 | Vilas Boas, Paulo Eduardo (1455) | Won 2-0 | +161548 |
| 10standard | 50 | Pacheco, Marcus (1405) | Won 2-0 | +161564 |
| 11standard | 46 | Errerias, Caio Vinicius (1580) | Lost 1-2 | -181546 |
| 12standard | 71 | Laurindo, Victor (1520) | Lost 0-2 | -181528 |
| 13standard | 76 | Coraiola, Gustavo (1557) | Lost 0-2 | -181510 |
| 14standard | 78 | Fagundes, Josejane (1633) | Lost 0-2 | -161494 |
| 15standard | 74 | Levi Constancio Da Silva, Carlos (1505) | Won 2-1 | +191513 |
| average opponent: 1554record: 8-7 | new rating: 1513 | |||
| Grand Prix Porto Alegre 2015 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 184 | Dirceu Alves Barbosa, Wekisley (1533) | Won 2-0 | +191519 |
| 2modern | 11 | Crusius, Diego (1580) | Lost 0-2 | -171502 |
| 3modern | 179 | Rehfeld Schoen, Pedro (1500) | Lost 1-2 | -181484 |
| 4modern | 320 | Mathias Simm, Carlos (1520) | Won 2-0 | +181502 |
| 5modern | 244 | Lemos, Nelson (1518) | Won 2-0 | +191521 |
| 6modern | 142 | De Oliveira, Roberto Ramos (1516) | Lost 0-2 | -181503 |
| 7modern | 199 | Rottmann, Kurt (1624) | Lost 1-2 | -161487 |
| 8modern | 172 | Tibaldi, Franco (1474) | Won 2-0 | +181505 |
| 9modern | 131 | Archanjo Martins, Micaella (1472) | Lost 1-2 | -191486 |
| average opponent: 1526record: 4-5 | new rating: 1486 | |||