Lumbreras, Samuel U
Current rating: 1556
Record: 9-6-2
| Grand Prix Bilbao 2013 (modern) | starting rating: 1559 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 266 | Carcelen Genova, David (1500) | Won 2-0 | +171576 |
| 2modern | 85 | Munoz Cabo, Igor (1518) | Lost 1-2 | -191557 |
| 3modern | 261 | Cano Constanzo, Jose Luis (1414) | Won 2-0 | +151572 |
| 4modern | 251 | Koestler, Jonas (1933) | Lost 1-2 | -111561 |
| 5modern | 244 | Lowe, Chris (1500) | Won 2-0 | +161577 |
| 6modern | 238 | Nilsson, Andreas (1520) | Won 2-1 | +171594 |
| 7modern | 137 | Fernandes, Bruno (1539) | Lost 1-2 | -191575 |
| 8modern | 247 | Vargas, Olivier (1514) | Lost 1-2 | -191556 |
| average opponent: 1555record: 4-4 | new rating: 1556 | |||
| Grand Prix Ghent 2012 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 787 | Brunet, Max (1500) | Won 2-1 | +181518 |
| 2legacy | 707 | Hoffmann, Mederic (1607) | Draw 1-1 | +21520 |
| 3legacy | 712 | Romay, Lucas (1516) | Draw 1-1 | 01520 |
| 4legacy | 817 | Andrieu, Thibault (1654) | Won 2-0 | +201540 |
| 5legacy | 755 | Ekman, Johan (1536) | Won 2-1 | +181558 |
| 6legacy | 700 | Merckx, Robin (1584) | Won 2-1 | +181576 |
| 7legacy | 661 | Vicaire, Sebastien (1501) | Won 2-0 | +171593 |
| 8legacy | 635 | Venchiarutti, Philippe (1805) | Lost 0-2 | -141579 |
| 9legacy | 670 | Genieis, Nicolas (1473) | Lost 1-2 | -201559 |
| average opponent: 1575record: 5-2-2 | new rating: 1559 | |||