Astorga, Alberto
Current rating: 1434
Record: 13-18
| Grand Prix Sao Paulo 2018 (modern) | starting rating: 1424 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 122 | Flaitt, Caue (1500) | Won 2-1 | +201444 |
| 2modern | 52 | Savattero, Bruno (1518) | Won 2-0 | +191463 |
| 3modern | 71 | Vinicius, Alan (1534) | Lost 1-2 | -171446 |
| 4modern | 383 | Peirano, Octavio (1515) | Won 2-1 | +201466 |
| 5modern | 99 | Sant'Anna, Jorgemi (1501) | Lost 1-2 | -181448 |
| 6modern | 229 | Dassie, Marcio (1507) | Lost 1-2 | -171431 |
| 7modern | 296 | Lima, Pablo (1500) | Lost 0-2 | -161415 |
| 8modern | 355 | Mary, Fabricio (1481) | Won 2-0 | +191434 |
| top | average opponent: 1507record: 4-4 | new rating: 1434 | ||
| Grand Prix Sao Paulo 2017 (modern) | starting rating: 1513 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 218 | Bofo De Oliveira, Daniel (1500) | Lost 1-2 | -181495 |
| 2modern | 407 | Ribeiro, Otavio (1464) | Won 2-0 | +171512 |
| 3modern | 392 | Tristao Da Silva, Cristiano (1500) | Won 2-0 | +181530 |
| 4modern | 223 | Dias Granato, Bernardo (1681) | Lost 1-2 | -151515 |
| 5modern | 424 | Epstein, Nicolas (1612) | Lost 0-2 | -161499 |
| 6modern | 396 | Lapeta, Lucas (1481) | Lost 0-2 | -191480 |
| 7modern | 456 | De Almeida, Diego (1448) | Lost 1-2 | -181462 |
| 8modern | 415 | Melo Silva, Rubens (1445) | Lost 1-2 | -181444 |
| 9modern | 352 | Francelino, Lygia Karla (1379) | Lost 0-2 | -201424 |
| top | average opponent: 1501record: 2-7 | new rating: 1424 | ||
| Grand Prix Santiago 2015 (ORI limited) | starting rating: 1483 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 245 | Troncoso, Jose Luis (1469) | Lost 0-2 | -181465 |
| 2sealed | 298 | Montegu, Roberto (1483) | Won 2-0 | +181483 |
| 3sealed | 211 | dos Reis, Ruda (1501) | Lost 1-2 | -181465 |
| 4sealed | 309 | Echeverria Paredes, Jose Luis (1836) | Won 2-0 | +251490 |
| 5sealed | 223 | Troncoso Allende, Esteban (1499) | Won 2-1 | +181508 |
| 6sealed | 118 | Ancala, Daniel (1520) | Won 2-0 | +181526 |
| 7sealed | 82 | Guajardo, Ignacio (1540) | Won 2-0 | +191545 |
| 8sealed | 76 | Tejo, Demian (1799) | Lost 0-2 | -141531 |
| 9sealed | 70 | Palacios, Pablo (1543) | Lost 1-2 | -181513 |
| top | average opponent: 1577record: 5-4 | new rating: 1513 | ||
| Grand Prix Santiago 2014 (KTK standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 179 | Zanolli, Juan Francisco (1500) | Lost 0-2 | -181482 |
| 2standard | 240 | Riquelme, Guillermo (1535) | Lost 0-2 | -171465 |
| 3standard | 305 | Said Duran, Omar (1467) | Lost 0-2 | -181447 |
| 4standard | 316 | Garces, Francisco (1445) | Won 2-0 | +181465 |
| 5standard | 281 | Villacura, Ignacio (1465) | Won 2-1 | +181483 |
| top | average opponent: 1482record: 2-3 | new rating: 1483 | ||