Guglielmo, Mario
Current rating: 1358
Record: 8-17
| Grand Prix Sao Paulo 2015 (DTK standard) | starting rating: 1388 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 174 | Moreira, Thiago (1492) | Lost 1-2 | -161372 |
| 2standard | 412 | Alexandre dos Passos, (1482) | Won 2-1 | +201392 |
| 3standard | 313 | Rojas Keim, Felipe Andres (1437) | Lost 1-2 | -181374 |
| 4standard | 549 | Ricardo Andrade Negrin, (1482) | Lost 1-2 | -161358 |
| top | average opponent: 1473record: 1-3 | new rating: 1358 | ||
| Grand Prix New Jersey 2014 (legacy) | starting rating: 1416 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 88 | Mastriano, Paul (1630) | Lost 0-2 | -141402 |
| 2legacy | 483 | Kramisen, Robert (1482) | Won 2-1 | +191421 |
| 3legacy | 503 | Segarra, Andre (1481) | Lost 1-2 | -171404 |
| 4legacy | 578 | Cooperman, Ross (1484) | Lost 0-2 | -161388 |
| top | average opponent: 1519record: 1-3 | new rating: 1388 | ||
| Grand Prix Boston-Worcester 2014 (modern) | starting rating: 1470 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 20 | Hallum, Robert (1500) | Lost 1-2 | -171453 |
| 2modern | 358 | Lynch, Robert (1464) | Won 2-1 | +181471 |
| 3modern | 371 | Wenokor, Gregory (1351) | Lost 0-2 | -201451 |
| 4modern | 405 | Mesa, Juan (1497) | Lost 0-2 | -171434 |
| 5modern | 502 | Fuhrman, Curtis (1442) | Lost 1-2 | -181416 |
| top | average opponent: 1451record: 1-4 | new rating: 1416 | ||
| Grand Prix Miami 2013 (DGM standard) | starting rating: 1466 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 269 | Brown, Mark S (1500) | Lost 0-2 | -171449 |
| 2standard | 340 | Kain, Morgan (1517) | Lost 1-2 | -171432 |
| 3standard | 514 | Lopez, Lazaro (1464) | Lost 0-2 | -171415 |
| 4standard | 564 | Brand, Karl (1448) | Won 2-0 | +181433 |
| 5standard | 474 | Burroughs, David (1464) | Won 2-0 | +191452 |
| 6standard | 422 | Borroto, Ricardo (1482) | Won 2-0 | +181470 |
| top | average opponent: 1479record: 3-3 | new rating: 1470 | ||
| Grand Prix Rio de Janeiro 2013 (GTC standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 108 | Abrunhosa, Igor (1500) | Won 2-1 | +181518 |
| 2standard | 80 | Jaudy, Tulio (1720) | Lost 1-2 | -141504 |
| 3standard | 155 | Santos, Romulo (1503) | Lost 1-2 | -181486 |
| 4standard | 261 | Gagnepain, Jean Baptiste (1483) | Won 2-0 | +181504 |
| 5standard | 219 | Martinez Pereira Dias, Bruno (1428) | Lost 1-2 | -201484 |
| 6standard | 234 | De Almeida, Joao (1480) | Lost 0-2 | -181466 |
| top | average opponent: 1519record: 2-4 | new rating: 1466 | ||