Guzman, David
Current rating: 1512
Record: 22-18 (GP) / 0-6 (professional)
| Grand Prix Barcelona 2018 (modern) | starting rating: 1513 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 267 | Abelt, Marc (1169) | Won 2-1 | +121525 |
| 2modern | 301 | Navarro Bibiloni, German (1464) | Lost 0-2 | -191506 |
| 3modern | 569 | Svensson, Patrik (1390) | Won 2-1 | +161522 |
| 4modern | 381 | Van Leur, Martijn (1547) | Lost 1-2 | -171505 |
| 5modern | 393 | Reintges, Marcel (1499) | Won 2-1 | +171522 |
| 6modern | 417 | Savignac, Pierre (1481) | Lost 1-2 | -181504 |
| 7modern | 400 | Tvrznik, Pavel (1690) | Won 2-1 | +211525 |
| 8modern | 245 | Steyns, Nick (1808) | Lost 1-2 | -131512 |
| top | average opponent: 1506record: 4-4 | new rating: 1512 | ||
| Grand Prix Seville 2015 (FRF standard) | starting rating: 1426 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 209 | Alba, Ana (1464) | Won 2-0 | +181444 |
| 2standard | 73 | Cabrera Rivero, Aitor (1518) | Won 2-0 | +201464 |
| 3standard | 96 | Calero, Toni (1480) | Won 2-1 | +181482 |
| 4standard | 27 | Roldan Garcia, Manuel (1541) | Lost 0-2 | -171465 |
| 5standard | 138 | Herrera Arroyo, Jose Javier (1473) | Won 2-0 | +181483 |
| 6standard | 40 | Soares, Jose (1575) | Won 2-1 | +201503 |
| 7standard | 48 | Brown, Eric (1565) | Won 2-1 | +191522 |
| 8standard | 17 | Boussaud, Eliott (1979) | Lost 1-2 | -101512 |
| 9standard | 31 | Sosa Marrero, Eduardo (1710) | Won 2-0 | +211533 |
| 10standard | 35 | Dominguez, Javier (2098) | Lost 0-2 | -81525 |
| 11standard | 38 | Rodriguez Arbeo, Francisco (1551) | Lost 1-2 | -181507 |
| 12standard | 39 | Ventura, Sergio (1636) | Lost 0-2 | -161491 |
| 13standard | 44 | Romero Serra, Lorenzo (1457) | Won 2-0 | +181509 |
| 14standard | 43 | Balbuena Evans, Sergio (1725) | Won 2-1 | +221531 |
| 15standard | 38 | Ruano Ortega, Pedro (1563) | Lost 0-2 | -181513 |
| top | average opponent: 1622record: 9-6 | new rating: 1513 | ||
| Pro Tour San Juan 2010 (Zendikar block) | starting rating: 1513 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 84 | Vieren, Peter (1954) | Lost 0-2 | -101503 |
| 2block | 180 | Ruel, Antoine (1617) | Lost 0-2 | -161487 |
| 3block | 153 | Wescoe, Craig (1889) | Lost 0-2 | -111476 |
| 4block | 188 | Kobayashi, Jun (1313) | Lost 1-2 | -211455 |
| 5block | 185 | Riley, Jordan (1527) | Lost 1-2 | -171438 |
| 6draft | 124 | Musial, Lukasz (1743) | Lost 0-2 | -121426 |
| top | average opponent: 1674record: 0-6 | new rating: 1426 | ||
| Grand Prix Madrid 2010 (legacy) | starting rating: 1555 | |||
| round | table | opponent (rating) | result | Δrating |
| 2legacy | 183 | Climent, Jaime (1497) | Lost 1-2 | -191536 |
| 3legacy | 290 | Morales Aparicio, Arturo (1555) | Won 2-0 | +191555 |
| 4legacy | 151 | Mascarell, Pedro J (1517) | Lost 1-2 | -191536 |
| 5legacy | 277 | Keler, Mathias (1427) | Lost 1-2 | -201516 |
| 6legacy | 362 | Wiktorsson, Patrick (1485) | Lost 1-2 | -181498 |
| 7legacy | 299 | Martin Lago, Alfonso (1448) | Lost 1-2 | -191479 |
| 8legacy | 261 | Garcia, Raul (1433) | Won 2-0 | +171496 |
| 9legacy | 198 | Luque, Antonio (1467) | Won 2-1 | +171513 |
| top | average opponent: 1479record: 3-5 | new rating: 1513 | ||
| Grand Prix Barcelona 2009 (ARB standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 149 | Baena, Rafael (1385) | Lost 0-2 | -201480 |
| 2standard | 284 | Exposito Cerro, Jesus (1503) | Won 2-0 | +181498 |
| 3standard | 255 | Saenz de Urturi, Alejandro (1601) | Lost 1-2 | -161482 |
| 4standard | 298 | Perez Silanes, Asier (1481) | Won 2-1 | +181500 |
| 5standard | 190 | Bejarano, Rafael (1643) | Lost 1-2 | -151485 |
| 6standard | 230 | Alvarez, Miguel (1505) | Won 2-1 | +181503 |
| 7standard | 179 | Garcia Lorenzo, David (1468) | Won 2-0 | +171520 |
| 8standard | 143 | Cornet, Philippe (1514) | Won 2-0 | +181538 |
| 9standard | 104 | Henneton, Gilles (1490) | Won 2-1 | +171555 |
| top | average opponent: 1510record: 6-3 | new rating: 1555 | ||