Diaz, Guillermo
Current rating: 1441
Record: 4-7
| Grand Prix Barcelona 2019 (modern) | starting rating: 1522 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 385 | Barbat, Thibault (1500) | Lost 1-2 | -191503 |
| 2modern | 513 | Denter, Matthias (1483) | Lost 0-2 | -181485 |
| 3modern | 707 | Garrido Nunez, Juan Jose (1370) | Lost 1-2 | -201465 |
| 4modern | 721 | Berio, Davide (1134) | Lost 0-2 | -241441 |
| average opponent: 1371record: 0-4 | new rating: 1441 | |||
| Grand Prix Bilbao 2019 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 374 | Borinaga, Asier (1471) | Lost 0-2 | -191481 |
| 2modern | 516 | Aurre, Asier (1481) | Won 2-1 | +181499 |
| 3modern | 531 | Vassalo, Pedro (1400) | Won 2-1 | +171516 |
| 4modern | 365 | Rodenas Ferrando, Adrian (1656) | Won 2-0 | +201536 |
| 5modern | 132 | Olavarria Barragan, Aitor (1536) | Won 2-1 | +181554 |
| 6modern | 161 | Hummel, Konstantin (1539) | Lost 0-2 | -181536 |
| 7modern | 318 | Drapala, Thomas (1750) | Lost 1-2 | -141522 |
| average opponent: 1548record: 4-3 | new rating: 1522 | |||