Marmo, Mattia
Current rating: 1361
| Grand Prix Bologna 2019 (legacy) | starting rating: 1411 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 501 | Cerrada Ruiz, Ivan (1500) | Lost 0-2 | -161395 |
| 2legacy | 592 | Vanbockstael, Theophile (1422) | Lost 1-2 | -181377 |
| 3legacy | 668 | Mauri, Matteo (1501) | Lost 0-2 | -161361 |
| top | average opponent: 1474record: 0-3 | new rating: 1361 | ||
| Grand Prix Milan 2014 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 46 | Rossi, Christian (1557) | Lost 0-2 | -171483 |
| 2modern | 548 | Brazzoduro, Niccolo (1488) | Won 2-0 | +181501 |
| 3modern | 609 | Fontana, Tomasz (1644) | Lost 1-2 | -151486 |
| 4modern | 665 | Bonometti, Eugenio (1484) | Lost 0-2 | -181468 |
| 5modern | 629 | Micheli, Davide (1487) | Lost 1-2 | -181450 |
| 6modern | 620 | Foradini, Massimiliano (1277) | Lost 1-2 | -211429 |
| 7modern | 538 | Lattuada, Martino (1428) | Lost 0-2 | -181411 |
| top | average opponent: 1481record: 1-6 | new rating: 1411 | ||
| Grand Prix Turin 2012 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 86 | Salvadori, Giacomo (1500) | Won 2-1 | +181518 |
| 2modern | 101 | Musarra, Antonio (1518) | Lost 1-2 | -181500 |
| 3modern | 160 | Basoni, Federico (1512) | Lost 0-2 | -181482 |
| 4modern | 217 | Lee, Eal (1518) | Lost 0-2 | -171465 |
| 5modern | 235 | Di Biase, Valerio (1463) | Won 2-0 | +181483 |
| 6modern | 206 | Ughetti, Nicola (1439) | Won 2-0 | +171500 |
| 7modern | 157 | Zrelov, Maxim (1509) | Won 2-1 | +181518 |
| 8modern | 129 | Merckel, Gauthier (1515) | Lost 1-2 | -181500 |
| top | average opponent: 1497record: 4-4 | new rating: 1500 | ||