Gigena Ontivero, Matias
Current rating: 1503
Record: 6-6
| Grand Prix Buenos Aires 2015 (DTK standard) | starting rating: 1526 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 158 | Torrico T, Alexander S (1500) | Won 2-0 | +181544 |
| 2standard | 8 | Neira, Marcelo (1405) | Won 2-1 | +151559 |
| 3standard | 42 | Gomez, Tomas (1535) | Lost 0-2 | -181541 |
| 4standard | 205 | del Guercio, Martin (1450) | Lost 0-2 | -201521 |
| 5standard | 208 | Bona, Jeronimo (1502) | Lost 0-2 | -181503 |
| average opponent: 1479record: 2-3 | new rating: 1503 | |||
| Grand Prix Buenos Aires 2014 (BNG standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 120 | Galvan, Jonathan (1537) | Won 2-1 | +191519 |
| 4standard | 63 | Alvarez, Diego (1557) | Won 2-0 | +181537 |
| 5standard | 27 | Real, Enzo (1607) | Lost 0-2 | -161521 |
| 6standard | 40 | Castro, Juan Manuel (1622) | Won 2-1 | +191540 |
| 7standard | 21 | Eduardo, Carlos (1555) | Lost 1-2 | -171523 |
| 8standard | 105 | Aguilera, Sebastian (1522) | Won 2-0 | +181541 |
| 9standard | 95 | Pozzo, Sebastian (1735) | Lost 0-2 | -151526 |
| average opponent: 1591record: 4-3 | new rating: 1526 | |||