| Year | Competition | Venue | Position | Notes |
| Representing Italy | Representing Italy | Representing Italy | Representing Italy | Representing Italy |
| 1995 | European Junior Championships | Nyíregyháza, Hungary | 5th | 15.81 m |
| 1997 | European U23 Championships | Turku, Finland | 11th | 15.55 m (-2.0 m/s) |
| 2000 | European Indoor Championships | Ghent, Belgium | 6th | 16.57 m |
| 2000 | Olympic Games | Sydney, Australia | 25th (q) | 16.34 m |
| 2001 | World Indoor Championships | Lisbon, Portugal | 6th | 16.77 m |
| 2001 | Mediterranean Games | Radès, Tunisia | 1st | 17.05 m |
| 2002 | European Indoor Championships | Vienna, Austria | 4th | 16.90 m |
| 2002 | European Championships | Munich, Germany | 4th | 17.15 m |
| 2003 | World Championships | Paris, France | 13th (q) | 16.63 m |
| 2004 | World Indoor Championships | Budapest, Hungary | 11th (q) | 16.68 m |
| 2004 | Olympic Games | Athens, Greece | 21st (q) | 16.45 m |
| 2006 | World Indoor Championships | Moscow, Russia | 17th (q) | 16.35 m |
| 2006 | European Championships | Gothenburg, Sweden | 16th (q) | 16.66 m |
| 2007 | World Championships | Osaka, Japan | 32nd (q) | 16.20 m |
| 2008 | World Indoor Championships | Valencia, Spain | 4th | 17.27 m |
| 2008 | Olympic Games | Beijing, China | 21st (q) | 16.70 m |
| 2009 | European Indoor Championships | Turin, Italy | 1st | 17.59 m (iNR) |
| 2009 | World Championships | Berlin, Germany | 41st (q) | 15.81 m |
| 2010 | World Indoor Championships | Doha, Qatar | 5th | 16.88 m |
| 2010 | European Championships | Barcelona, Spain | 9th | 16.54 m |
| 2011 | European Indoor Championships | Paris, France | 2nd | 17.73 m (iNR) |
| 2011 | World Championships | Daegu, South Korea | 10th | 16.77 m |
| 2012 | World Indoor Championships | Istanbul, Turkey | 4th | 17.28 m |
| 2012 | European Championships | Helsinki, Finland | 1st | 17.63 m (w) |
| 2012 | Olympic Games | London, United Kingdom | 3rd | 17.48 m |
| 2013 | World Championships | Moscow, Russia | 15th (q) | 16.53 m |
| 2014 | European Championships | Zürich, Switzerland | 7th | 16.66 m |
| 2016 | Olympic Games | Rio de Janeiro, Brazil | 17th (q) | 16.54 m |
| 2017 | European Indoor Championships | Belgrade, Serbia | 2nd | 17.13 m (M40 WR) |
| 2018 | World Indoor Championships | Birmingham, United Kingdom | 14th | 15.96 m |
| 2018 | European Championships | Berlin, Germany | 20th (q) | 16.15 m |
| 2019 | European Indoor Championships | Glasgow, United Kingdom | 18th (q) | 15.93 m |