Barrera, Juan
Current rating: 1432
Record: 11-17-1
| Grand Prix Madrid 2010 (legacy) | starting rating: 1442 | |||
| round | table | opponent (rating) | result | Δrating |
| 2legacy | 737 | Ronzo, Giampiero (1517) | Won 2-0 | +191461 |
| 3legacy | 760 | Iacovazzo, Pablo (1517) | Draw 1-1 | +11462 |
| 4legacy | 830 | Knorr, Sebastian (1714) | Lost 1-2 | -131449 |
| 5legacy | 957 | Gomez, Alberto (1489) | Lost 0-2 | -171432 |
| top | average opponent: 1560record: 1-2-1 | new rating: 1432 | ||
| Grand Prix Barcelona 2006 (GPT limited) | starting rating: 1389 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 24 | Petroczi, Thomas (1518) | Lost 0-2 | -161373 |
| 3sealed | 136 | Chamorro Diez, Victor (1484) | Won 2-0 | +201393 |
| 4sealed | 119 | Krings, Stefan (1665) | Won 2-0 | +231416 |
| 5sealed | 78 | Lopez, Sergio 9961 (1536) | Won 2-1 | +201436 |
| 6sealed | 39 | Ribes Pizarro, Jose (1539) | Won 2-1 | +201456 |
| 7sealed | 17 | Jara Perez, Juan Carlos (1519) | Lost 1-2 | -171439 |
| 8sealed | 49 | Padulazzi, Massimiliano (1471) | Won 2-1 | +191458 |
| 9sealed | 43 | Garcia Mora, David (1578) | Lost 1-2 | -161442 |
| top | average opponent: 1539record: 5-3 | new rating: 1442 | ||
| Grand Prix Madrid 2004 (DST limited) | starting rating: 1400 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 204 | Alvarez, Miguel (1427) | Lost 0-2 | -171383 |
| 3sealed | 245 | Lemos, Jose (1500) | Lost 0-2 | -161367 |
| 4sealed | 389 | Florencio, Juan (1481) | Won 2-1 | +201387 |
| 5sealed | 413 | Ariza Toscano, Pablo (1504) | Won 2-0 | +201407 |
| 6sealed | 269 | Terre Gonzalez, Enrique (1395) | Lost 1-2 | -181389 |
| top | average opponent: 1461record: 2-3 | new rating: 1389 | ||
| Grand Prix Lyon 2003 (MRD limited) | starting rating: 1465 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 65 | Fayolle, Olivier (1518) | Lost 0-2 | -171448 |
| 3sealed | 185 | Delbart, Olivier (1500) | Won 2-0 | +191467 |
| 4sealed | 189 | Fadeuilhe, Ludovic (1501) | Lost 0-2 | -181449 |
| 5sealed | 245 | Errard, Xavier (1500) | Won 2-1 | +191468 |
| 6sealed | 211 | Zarka, Julien (1597) | Lost 0-2 | -151453 |
| 7sealed | 244 | Mendez Bermudez, Sergio (1472) | Lost 1-2 | -181435 |
| 8sealed | 232 | Lang, Vincent (1466) | Lost 1-2 | -181417 |
| 9sealed | 203 | Castelluci, Julien (1465) | Lost 1-2 | -171400 |
| top | average opponent: 1502record: 2-6 | new rating: 1400 | ||
| Grand Prix Seville 2003 (LGN limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 30 | Pavon Losada, Juan Antonio (1500) | Lost 1-2 | -181482 |
| 2sealed | 242 | Romasanta, Antia (1482) | Won 2-0 | +181500 |
| 3sealed | 137 | Castro, Simao (1541) | Lost 0-2 | -171483 |
| 4sealed | 307 | Henriques, Bruno (1482) | Lost 0-2 | -181465 |
| top | average opponent: 1501record: 1-3 | new rating: 1465 | ||