Zapata, Alfonso
Current rating: 1439
Record: 12-16-2
| Grand Prix Santiago 2015 (ORI limited) | starting rating: 1513 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 100 | Azofeifa, Ignacio (1532) | Lost 0-2 | -181495 |
| 2sealed | 323 | Carmona, Sebastian (1433) | Lost 1-2 | -191476 |
| 3sealed | 350 | Moya, Sebastian (1465) | Lost 0-2 | -181458 |
| 4sealed | 357 | Letelier, Juan Pablo (1412) | Lost 0-2 | -191439 |
| top | average opponent: 1461record: 0-4 | new rating: 1439 | ||
| Grand Prix Santiago 2014 (KTK standard) | starting rating: 1526 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 157 | Genova, Joao (1500) | Won 2-1 | +181544 |
| 2standard | 216 | Pardo, Edison (1449) | Lost 0-2 | -201524 |
| 3standard | 256 | Cepeda, Carlos (1437) | Won 2-0 | +171541 |
| 4standard | 201 | Martins Gomes, Leandro (1638) | Lost 0-2 | -171524 |
| 5standard | 171 | Cartechini, Mariano (1657) | Lost 1-2 | -151509 |
| 6standard | 216 | Kendall, Ian (1492) | Won 2-0 | +181527 |
| 7standard | 156 | Tejo, Demian (1804) | Lost 0-2 | -141513 |
| 8standard | 171 | Pinto, Humberto (1498) | Won 2-1 | +181531 |
| 9standard | 146 | Oyarzun Jimenez, Paula (1501) | Lost 0-2 | -181513 |
| top | average opponent: 1553record: 4-5 | new rating: 1513 | ||
| Grand Prix Santiago 2013 (THS standard) | starting rating: 1485 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 81 | Briceno, Matias (1518) | Draw 1-1 | +11486 |
| 3modern | 162 | Maraboli, Rodolfo (1551) | Lost 0-2 | -171469 |
| 4modern | 250 | Huanca, Alfonso (1485) | Won 2-1 | +181487 |
| 5modern | 179 | Lescano, Juan (1518) | Won 2-1 | +191506 |
| 6modern | 23 | Osorio Parot, Javier (1582) | Won 2-0 | +191525 |
| 7modern | 64 | Sanchez, Cristian [CHL] (1614) | Draw 1-1 | +21527 |
| 8modern | 111 | Ifland, Claudio (1522) | Won 2-0 | +181545 |
| 9modern | 74 | Valenzuela, Cristian (1539) | Lost 0-2 | -191526 |
| top | average opponent: 1541record: 4-2-2 | new rating: 1526 | ||
| Grand Prix Santiago 2011 (ISD limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 18 | Videla, Cristian (1500) | Lost 1-2 | -181482 |
| 2sealed | 214 | Lobos Moreno, Lautaro (1482) | Won 2-1 | +181500 |
| 3sealed | 119 | Paolo, Pablo (1507) | Lost 0-2 | -181482 |
| 4sealed | 294 | Le Saux, Rafael (1695) | Lost 1-2 | -141468 |
| 5sealed | 299 | Fuentealba, Felipe (1463) | Won 2-1 | +181486 |
| 6sealed | 238 | Alamo, Luciano (1518) | Lost 0-2 | -181468 |
| 7sealed | 229 | Lazcano, Joaquin (1467) | Lost 0-2 | -181450 |
| 8sealed | 203 | Rossini, Sebastian (1410) | Won 2-1 | +181468 |
| 9sealed | 160 | Rosenberg, Marcela (1428) | Won 2-1 | +171485 |
| top | average opponent: 1497record: 4-5 | new rating: 1485 | ||