Contreras Woda, Guido
Current rating: 1578
| Grand Prix Buenos Aires 2015 (DTK standard) | starting rating: 1545 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 138 | Parot, Ignacio (1655) | Lost 1-2 | -161529 |
| 2standard | 178 | Ramadan, Sergio (1640) | Won 2-1 | +201549 |
| 3standard | 236 | Arrostito, Andres (1447) | Won 2-0 | +161565 |
| 4standard | 134 | La Fuente B, Miguel (1518) | Won 2-0 | +171582 |
| 5standard | 120 | Rey, Nicolas (1493) | Won 2-0 | +161598 |
| 6standard | 82 | Daruich, Maximiliano (1512) | Lost 1-2 | -191579 |
| 7standard | 61 | Mariscal, Patricio (1579) | Won 2-1 | +181597 |
| 8standard | 86 | Toledo, Marlus (1559) | Lost 1-2 | -191578 |
| top | average opponent: 1550record: 5-3 | new rating: 1578 | ||
| Grand Prix Buenos Aires 2014 (BNG standard) | starting rating: 1485 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 105 | Prillo, Sebastian (1466) | Lost 1-2 | -181467 |
| 2standard | 304 | Lanzarotti, Esteban (1482) | Won 2-1 | +181485 |
| 3standard | 315 | Annecchini, Simon (1502) | Lost 1-2 | -181467 |
| 4standard | 303 | Eguren, Osvaldo (1481) | Won 2-0 | +191486 |
| 5standard | 289 | Scarso, Federico (1500) | Won 2-1 | +181504 |
| 6standard | 191 | Rojo Righetti, Fernando Ignacio (1606) | Won 2-1 | +201524 |
| 7standard | 45 | Oliveira Rodrigues, William (1645) | Won 2-1 | +201544 |
| 8standard | 65 | Capello, Matias (1569) | Lost 0-2 | -181526 |
| 9standard | 131 | Martin, Santiago (1542) | Won 2-0 | +191545 |
| top | average opponent: 1533record: 6-3 | new rating: 1545 | ||
| Grand Prix Buenos Aires 2000 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 72 | Scarpa, Juan (1500) | Lost 1-2 | -181482 |
| 2extended | 98 | Gonzalez, Ignacio (1482) | Won 2-0 | +181500 |
| 3extended | 108 | Perosi Nieto, Rodrigo (1500) | Lost 1-2 | -181482 |
| 4extended | 137 | Siempler, Federico (1482) | Won 2-0 | +181500 |
| 5extended | 84 | Gaibisso, Martin (1499) | Won 2-0 | +181518 |
| 6extended | 67 | O'Mahoney-Schwartz, Steven (1700) | Lost 0-2 | -151503 |
| 7extended | 100 | Pianelli, Leonardo (1500) | Lost 1-2 | -181485 |
| top | average opponent: 1523record: 3-4 | new rating: 1485 | ||