Zaccone, Massimo
Current rating: 1529
| Grand Prix Prague 2009 (M10 limited) | starting rating: 1565 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 111 | Caffini, Alessandro (1467) | Won 2-0 | +161581 |
| 3sealed | 106 | Brandt, Kenneth (1810) | Won 2-0 | +221603 |
| 4sealed | 35 | Vitkovsky, Michal (1579) | Lost 0-2 | -181585 |
| 5sealed | 75 | Frischmann, Ludwig (1583) | Lost 1-2 | -181567 |
| 6sealed | 218 | Kirchbacher, Florian (1666) | Lost 0-2 | -161551 |
| 7sealed | 178 | Schmittbuettner, Markus (1407) | Lost 1-2 | -211530 |
| 8sealed | 164 | Thomas, Sebastien (1450) | Won 2-0 | +171547 |
| 9sealed | 109 | Bungard, Oliver (1594) | Lost 0-2 | -181529 |
| top | average opponent: 1569record: 3-5 | new rating: 1529 | ||
| Grand Prix Florence 2007 (Time Spiral block) | starting rating: 1559 | |||
| round | table | opponent (rating) | result | Δrating |
| 4block | 368 | Moore, Richard N (1787) | Lost 0-2 | -141545 |
| 5block | 390 | Birner, Armin (1726) | Lost 1-2 | -151530 |
| 6block | 456 | Hartmann, Yves (1496) | Won 2-0 | +181548 |
| 7block | 414 | Sirocchi, Marco (1535) | Lost 1-2 | -191529 |
| 8block | 428 | Dangeli, Luca (1521) | Won 2-0 | +181547 |
| 9block | 391 | Di Giorgio, Tiberio (1538) | Won 2-0 | +181565 |
| top | average opponent: 1601record: 3-3 | new rating: 1565 | ||
| Grand Prix Turin 2006 (DIS limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 49 | Tagliabue, Andrea (1500) | Lost 1-2 | -181482 |
| 2sealed | 188 | Tapat, John (1484) | Won 2-0 | +181500 |
| 3sealed | 220 | Carlier, Louis (1571) | Won 2-0 | +191519 |
| 4sealed | 114 | Azzoni, Emanuele (1550) | Won 2-0 | +191538 |
| 5sealed | 69 | Gazzotti, Federico (1534) | Won 2-0 | +181556 |
| 6sealed | 59 | Fyssas, Antonis (1651) | Won 2-1 | +201576 |
| 7sealed | 16 | Watkins-Field, John-James (1644) | Lost 1-2 | -171559 |
| top | average opponent: 1562record: 5-2 | new rating: 1559 | ||