Vega, Guillermo
Current rating: 1369
Record: 4-12-2
| Grand Prix Amsterdam 2017 (AKH standard) | starting rating: 1401 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 104 | Rutgers, Pim (1500) | Lost 0-2 | -161385 |
| 2standard | 292 | Poplawski, Jan (1482) | Draw 1-1 | +11386 |
| 3standard | 498 | De Roo, Leroy (1440) | Lost 0-2 | -171369 |
| top | average opponent: 1474record: 0-2-1 | new rating: 1369 | ||
| Grand Prix Valencia 2013 (THS limited) | starting rating: 1430 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 125 | Romero, Marilena (1500) | Won 2-0 | +191449 |
| 2sealed | 157 | Albert, Marc (1581) | Lost 1-2 | -151434 |
| 3sealed | 354 | Vazquez Gomez, Antonio (1500) | Lost 1-2 | -171417 |
| 4sealed | 378 | Huecas Otero, Germanico (1516) | Lost 0-2 | -161401 |
| top | average opponent: 1524record: 1-3 | new rating: 1401 | ||
| Grand Prix Bilbao 2013 (modern) | starting rating: 1446 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 62 | Herrero, Inigo (1500) | Lost 0-2 | -171429 |
| 2modern | 273 | Santos, Juan (1372) | Won 2-1 | +171446 |
| 3modern | 215 | Treceno, Diego (1451) | Won 2-0 | +181464 |
| 4modern | 237 | Brive, Alroc (1519) | Lost 1-2 | -171447 |
| 5modern | 292 | Gonzales, Antonio (1498) | Lost 0-2 | -171430 |
| top | average opponent: 1468record: 2-3 | new rating: 1430 | ||
| Grand Prix Lyon 2012 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 582 | Aeschlimann, Roman (1500) | Draw 1-1 | 01500 |
| 2modern | 651 | Warren, Michael Andrew (1500) | Lost 0-1 | -181482 |
| 3modern | 732 | Piccinino, Stefano (1539) | Lost 0-2 | -171465 |
| 4modern | 800 | Santallusia Grijalba, (1462) | Won 2-0 | +181483 |
| 5modern | 755 | Cabrero, Joan (1482) | Lost 0-2 | -181465 |
| 6modern | 761 | Mateo, Javier (1419) | Lost 0-2 | -191446 |
| top | average opponent: 1484record: 1-4-1 | new rating: 1446 | ||