Ballester, Juan
Current rating: 1414
Record: 12-18-1
| Grand Prix Barcelona 2019 (modern) | starting rating: 1465 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 297 | Sanchez, Francisco 2119 (1500) | Lost 1-2 | -171448 |
| 2modern | 488 | Ott, Jacques (1342) | Lost 1-2 | -201428 |
| 3modern | 700 | Vanesse, Xavier (1452) | Won 2-0 | +191447 |
| 4modern | 579 | D'Orazio, Pietro (1619) | Lost 1-2 | -151432 |
| 5modern | 639 | Martinez-Conde, Alex (1467) | Lost 1-2 | -181414 |
| top | average opponent: 1476record: 1-4 | new rating: 1414 | ||
| Grand Prix Madrid 2016 (KLD standard) | starting rating: 1436 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 218 | Navarro, Eladio (1447) | Lost 1-2 | -181418 |
| 2standard | 477 | Alami Merroun Khlifi, Sidi Mohamed (1602) | Lost 0-2 | -151403 |
| 3standard | 678 | Scheer, Thomas (1594) | Won 2-1 | +221425 |
| 4standard | 629 | De La Oliva, Iker (1484) | Won 2-1 | +191444 |
| 5standard | 432 | Vu, Jeremy (1632) | Lost 1-2 | -151429 |
| 6standard | 510 | Aguilar Pena, Cristian (1499) | Lost 0-2 | -161413 |
| 7standard | 582 | Huyaux, Nicolas (1464) | Won 2-0 | +181431 |
| 8standard | 498 | Leber, Denis (1238) | Won 2-0 | +151446 |
| 9standard | 408 | Costa, Tiago (1525) | Won 2-0 | +191465 |
| top | average opponent: 1498record: 5-4 | new rating: 1465 | ||
| Grand Prix Madrid 2015 (ORI limited) | starting rating: 1508 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 235 | Jaldon Albertos, (1500) | Won 2-1 | +181526 |
| 2sealed | 112 | Fernandez, Alfredo (1519) | Lost 0-2 | -191507 |
| 3sealed | 421 | Marques, Ricardo (1605) | Lost 0-2 | -161491 |
| 4sealed | 468 | Chaves, Antonio (1438) | Lost 0-2 | -191472 |
| 5sealed | 544 | Martin Gonzalez, Jairo Jairo (1461) | Lost 1-2 | -181454 |
| 6sealed | 505 | Porras Gutierrez, Toni (1446) | Lost 1-2 | -181436 |
| top | average opponent: 1495record: 1-5 | new rating: 1436 | ||
| Grand Prix Valencia 2001 (PLS limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 153 | Palacios Sanchez, Jose Luis (1428) | Won 2-0 | +171517 |
| 2sealed | 62 | Perez, Zenon (1535) | Lost 0-2 | -181499 |
| 3sealed | 94 | Rodriguez, Ricardo (1498) | Won 2-0 | +181517 |
| 4sealed | 65 | Graca, Renato (1573) | Won 2-0 | +191536 |
| 5sealed | 39 | Castrillo, Jorge (1554) | Draw 1-1 | 01536 |
| 6sealed | 44 | Pereira, Antonio (1574) | Won 2-0 | +191555 |
| 7sealed | 30 | Olivieri, Nicolas (1738) | Won 2-1 | +211576 |
| 8sealed | 19 | Ragull Puig, Miquel (1483) | Lost 0-2 | -191557 |
| 9draft | 28 | Gonzalez Lozano, Antonio Fernando (1555) | Lost 1-2 | -181539 |
| 10draft | 23 | Kastle, Darwin (1717) | Lost 1-2 | -151524 |
| 11draft | 30 | Rohde, Karl Heinz (1624) | Lost 0-2 | -161508 |
| top | average opponent: 1571record: 5-5-1 | new rating: 1508 | ||