Zamora Piedra, Jorge
Current rating: 1519
Record: 8-7-1
| Grand Prix Costa Rica 2016 (SOI standard) | starting rating: 1536 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 15 | Diaz, Hernan (1500) | Won 2-1 | +171553 |
| 2standard | 13 | Bedsole, Hayden (1642) | Lost 0-2 | -161537 |
| 3standard | 188 | van Sickle, Joseph (1555) | Won 2-0 | +181555 |
| 4standard | 96 | Cubillos, Fabian (1448) | Won 2-0 | +161571 |
| 5standard | 44 | Poblete, Juan Ignacio (1511) | Won 2-1 | +171588 |
| 6standard | 59 | Conboy, James (1620) | Lost 0-2 | -171571 |
| 7standard | 99 | Lindgren, Tommi (1799) | Lost 1-2 | -141557 |
| 8standard | 108 | Amador, Eduardo (1527) | Lost 0-2 | -191538 |
| 9standard | 125 | Hernandez Rodriguez, Victor Manuel (1471) | Lost 0-2 | -191519 |
| average opponent: 1564record: 4-5 | new rating: 1519 | |||
| Grand Prix Santiago 2001 (Invasion block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 2 | Lagazzi, Daniel (1500) | Draw 1-1 | 01500 |
| 2block | 71 | Solis Stegmann, Ramiro Alejandro (1465) | Lost 1-2 | -191481 |
| 3block | 109 | Perez, Claudio (1482) | Won 2-1 | +181499 |
| 4block | 93 | Cintra, Osmin Jose (1586) | Won 2-0 | +201519 |
| 5block | 67 | Goodhew-Plaza, Warrick (1518) | Won 2-1 | +181537 |
| 6block | 51 | Garreton, Mauricio (1535) | Won 2-0 | +181555 |
| 7block | 23 | Leniz, Andres (1503) | Lost 0-2 | -191536 |
| average opponent: 1513record: 4-2-1 | new rating: 1536 | |||