Bontorno, Antonio
Current rating: 1532
Record: 15-17-4
| Grand Prix Bologna 2016 (modern) | starting rating: 1543 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 211 | Tapat, John (1625) | Won 2-0 | +191562 |
| 4modern | 179 | Pispa, Lauri (1767) | Won 2-0 | +221584 |
| 5modern | 3 | Norton, Matthew [ENG] (1526) | Lost 0-2 | -191565 |
| 6modern | 242 | Bogolyubov, Dmitry (1632) | Won 2-1 | +191584 |
| 7modern | 43 | Paulmaier, Benjamin (1745) | Lost 0-2 | -151569 |
| 8modern | 132 | Zacchini, Federico (1560) | Lost 0-2 | -181551 |
| 9modern | 304 | Duroy, Maxence (1518) | Lost 1-2 | -191532 |
| top | average opponent: 1625record: 3-4 | new rating: 1532 | ||
| Grand Prix Milan 2014 (modern) | starting rating: 1446 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 4 | Campbell, Gary (1685) | Draw 1-1 | +41450 |
| 4modern | 186 | Della Giustina, Piero (1500) | Won 2-0 | +191469 |
| 5modern | 99 | Bollati, Matias (1743) | Won 2-1 | +231492 |
| 6modern | 51 | Nicosia, Alvaro (1571) | Won 2-0 | +201512 |
| 7modern | 23 | Carnevale, Franco (1600) | Draw 1-1 | +11513 |
| 8modern | 65 | Raso Stoia, Francesco (1545) | Won 2-1 | +191532 |
| 9modern | 2 | Klutz, Andreas (1542) | ID | 01532 |
| 10modern | 52 | Quinto, Saverio (1677) | Lost 0-2 | -161516 |
| 11modern | 94 | Hayne, Alexander (1902) | Won 2-0 | +251541 |
| 12modern | 77 | Cassini, Gregory (1717) | Lost 0-2 | -151526 |
| 13modern | 79 | Rausch, Oliver (1795) | Won 2-1 | +231549 |
| 14modern | 63 | Mattioli, Alberto (1744) | Lost 1-2 | -141535 |
| 15modern | 73 | Magnani, Paolo (1681) | Won 2-1 | +201555 |
| 16modern | 55 | Knorr, Sebastian (1883) | Lost 0-2 | -121543 |
| top | average opponent: 1685record: 7-4-3 | new rating: 1543 | ||
| Grand Prix Turin 2012 (modern) | starting rating: 1447 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 595 | Gehrer, Johannes (1581) | Lost 1-2 | -151432 |
| 4modern | 696 | Karlinski, Anton (1738) | Lost 0-2 | -131419 |
| 5modern | 706 | Waelkens, Wim (1514) | Lost 0-2 | -161403 |
| 6modern | 709 | Bonini, Andrea (1480) | Won 2-1 | +191422 |
| 7modern | 666 | Laudati, Pietro (1469) | Won 2-0 | +191441 |
| 8modern | 629 | Bisca, Dario (1516) | Won 2-1 | +201461 |
| 9modern | 608 | Bastos, Frederico (1655) | Lost 0-2 | -151446 |
| top | average opponent: 1564record: 3-4 | new rating: 1446 | ||
| Grand Prix Milan 2011 (ISD limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 527 | Lopez, Enrique E (1546) | Lost 0-2 | -171483 |
| 2sealed | 745 | Borra, Luca (1482) | Lost 1-2 | -181465 |
| 3sealed | 877 | Cezar Gutierrez, Enrique (1448) | Draw 1-1 | 01465 |
| 4sealed | 902 | Michel, Nathalie (1464) | Lost 0-2 | -181447 |
| 5sealed | 885 | Bojtar, Gyula (1451) | Lost 0-2 | -181429 |
| 6sealed | 842 | Ferrazzoli, Andrea (1445) | Lost 0-2 | -181411 |
| 7sealed | 782 | Succetti, Manuela (1394) | Won 2-0 | +181429 |
| 8sealed | 714 | Markos, Daniel (1481) | Draw 1-1 | +11430 |
| 9sealed | 664 | De Vecchi, Guido (1420) | Won 2-0 | +171447 |
| top | average opponent: 1459record: 2-5-2 | new rating: 1447 | ||