Zumelzu Martinez, Marcelo A
Current rating: 1525
Record: 7-6
| Grand Prix Santiago 2015 (ORI limited) | starting rating: 1507 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 161 | Parra N, Juan L L (1554) | Lost 1-2 | -171490 |
| 2sealed | 233 | Manns, Walter (1483) | Won 2-1 | +181508 |
| 3sealed | 169 | Fuentealba, Patricio A (1504) | Won 2-0 | +181526 |
| 4sealed | 162 | Sanhueza, Johan (1487) | Lost 1-2 | -191507 |
| 5sealed | 205 | Leon, Cristobal (1501) | Won 2-1 | +181525 |
| 6sealed | 175 | Mercadal, Enrique (1522) | Won 2-0 | +181543 |
| 7sealed | 99 | Saotome, Yukiyo (1549) | Lost 1-2 | -181525 |
| average opponent: 1514record: 4-3 | new rating: 1525 | |||
| Grand Prix Santiago 2013 (THS standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 55 | Bustos, Fabricio (1518) | Lost 0-2 | -181482 |
| 4modern | 25 | Echeverria Paredes, Jose Luis (1693) | Lost 0-2 | -141468 |
| 5modern | 235 | Jara, Erick (1498) | Won 2-1 | +191487 |
| 6modern | 160 | Norambuena, Michael (1501) | Won 2-0 | +181505 |
| 7modern | 74 | Meili, Leandro (1598) | Won 2-1 | +201525 |
| 8modern | 96 | Morales, Mario O (1540) | Lost 1-2 | -181507 |
| average opponent: 1558record: 3-3 | new rating: 1507 | |||