Zacchia, Robert
Current rating: 1552
Record: 11-9
| Grand Prix Bologna 2016 (modern) | starting rating: 1581 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 479 | Rossolini, Mattia (1500) | Lost 0-2 | -201561 |
| 2modern | 611 | Bratelia, Alexander (1482) | Lost 1-2 | -191542 |
| 3modern | 1035 | Ellen, Jonathan (1502) | Won 1-0 | +171559 |
| 4modern | 915 | Del Barba, Alessio (1481) | Won 2-0 | +171576 |
| 5modern | 642 | Giacchetti, Gregorio (1500) | Won 2-0 | +161592 |
| 6modern | 663 | Paris, Christophe (1478) | Lost 1-2 | -201572 |
| 7modern | 551 | Reginali, Francesco (1466) | Lost 0-2 | -201552 |
| average opponent: 1487record: 3-4 | new rating: 1552 | |||
| Grand Prix Vienna 2013 (THS standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 351 | Findejs, Jan (1570) | Won 2-0 | +191519 |
| 4standard | 57 | Vogl, Peter (1553) | Won 2-0 | +191538 |
| 5standard | 31 | Rehor, Radek (1536) | Won 2-1 | +181556 |
| 6standard | 13 | Koch, Florian (2033) | Won 2-0 | +261582 |
| 7standard | 8 | Bonde, Michael (1874) | Won 2-0 | +231605 |
| 8standard | 4 | Estratti, Samuele (1936) | Lost 1-2 | -121593 |
| 9standard | 30 | Kawonczyk, Maciej (1597) | Lost 0-2 | -181575 |
| 10standard | 71 | Bokor, Bence (1555) | Won 2-0 | +181593 |
| 11standard | 60 | Jasiulionis, Gintaras (1681) | Lost 1-2 | -171576 |
| 12standard | 63 | Tyminski, Michal (1530) | Won 2-0 | +171593 |
| 13standard | 59 | Ehrismann, Tobias (1713) | Lost 0-2 | -151578 |
| 14standard | 67 | Kowalski, Grzegorz (1778) | Lost 0-2 | -151563 |
| 15standard | 63 | Cofalik, Szymon (1533) | Won 2-0 | +181581 |
| average opponent: 1684record: 8-5 | new rating: 1581 | |||