Year | Competition | Venue | Position | Event | Notes
--- | --- | --- | --- | --- | ---
Representing Poland
2001 | World Youth Championships | Debrecen, Hungary | 2nd | 400 m | 47.12
1st | Medley relay | 1:50.46
European Junior Championships | Grosseto, Italy | 1st | 4x400 m relay | 3:06.12
2003 | European Junior Championships | Tampere, Finland | 3rd | 400 m | 46.69
2nd | 4x400 m relay | 3:08.62
2005 | European U23 Championships | Erfurt, Germany | 11th (sf) | 400 m | 46.62
1st | 4x400 m relay | 3:04.41
Universiade | Izmir, Turkey | 7th | 400 m | 46.89
1st | 4x400 m relay | 3:02.57
2006 | World Indoor Championships | Moscow, Russia | 2nd (h) | 4x400 m relay | 3:06.10
European Championships | Gothenburg, Sweden | 3rd | 4x400 m relay | 3:01.73
2007 | European Indoor Championships | Birmingham, United Kingdom | 3rd | 4x400 m relay | 3:08.14
Universiade | Bangkok, Thailand | 7th | 400 m | 46.85
1st | 4x400 m relay | 3:02.05
2008 | World Indoor Championships | Valencia, Spain | 4th | 4x400 m relay | 3:08.76
Olympic Games | Beijing, China | 7th | 4x400 m relay | 3:00.32
2009 | Universiade | Belgrade, Serbia | 2nd | 4x400 m relay | 3:05.69