| Marcin Marciniszyn | |
| Nationality: | Polish |
| Sport: | Athletics |
| Event: | 400 metres |
| Club: | WKS Śląsk Wrocław |
| Birth Date: | 7 September 1982 |
| Birth Place: | Bystrzyca Kłodzka, Poland |
| Height: | 1.84m (06.04feet) |
| Weight: | 800NaN0 |
Marcin Marciniszyn (born 7 September 1982, in Bystrzyca Kłodzka) is a Polish sprinter who specializes in the 400 metres.
| Representing | ||||||
|---|---|---|---|---|---|---|
| 2001 | European Junior Championships | Grosseto, Italy | 1st | 4 × 400 m relay | 3:06.12 | |
| 2002 | European Championships | Munich, Germany | – | 4 × 400 m relay | DQ | |
| 2003 | World Indoor Championships | Birmingham, United Kingdom | 3rd [1] | 4 × 400 m relay[2] | 3:06.61 | |
| 2004 | Olympic Games | Athens, Greece | 10th (h) | 4 × 400 m relay | 3:03.69 | |
| 2005 | European Indoor Championships | Madrid, Spain | 6th (h) | 400 m | 46.89 | |
| – | 4 × 400 m relay[3] | DQ | ||||
| World Championships | Helsinki, Finland | 24th (h) | 400 m | 45.97 | ||
| 5th | 4 × 400 m relay | 3:00.58 | ||||
| 2006 | World Indoor Championships | Moscow, Russia | 9th (sf) | 400 m | 46.97 | |
| 2nd | 4 × 400 m relay | 3:04.67 | ||||
| European Championships | Gothenburg, Sweden | 12th (sf) | 400 m | 45.96 | ||
| 2007 | European Indoor Championships | Birmingham, United Kingdom | 3rd | 4 × 400 m relay | 3:08.14 | |
| World Championships | Osaka, Japan | 34th (h) | 400 m | 45.83 | ||
| 3rd | 4 × 400 m relay | 3:00.05 | ||||
| 2009 | European Indoor Championships | Turin, Italy | 3rd | 4 × 400 m relay | 3:07.04 | |
| World Championships | Berlin, Germany | 22nd (h) | 400 m | 45.77 | ||
| 5th | 4 × 400 m relay | 3:02.23 | ||||
| 2010 | World Indoor Championships | Doha, Qatar | 14th (h) | 400 m | 47.23 | |
| 9th (h) | 4 × 400 m relay | 3:09.86 | ||||
| European Championships | Barcelona, Spain | 10th (sf) | 400 m | 45.58 | ||
| 5th | 4 × 400 m relay | 3:03.42 | ||||
| 2011 | European Indoor Championships | Paris, France | 5th | 4 × 400 m relay | 3:09.31 | |
| World Championships | Daegu, South Korea | 18th (sf) | 400 m | 45.94 | ||
| 11th (h) | 4 × 400 m relay | 3:01.84 | ||||
| 2012 | World Indoor Championships | Istanbul, Turkey | 6th | 4 × 400 m relay | 3:11.86 | |
| European Championships | Helsinki, Finland | 7th | 400m | 46.46 | ||
| 4th | 4 × 400 m relay | 3:02.37 | ||||
| Olympic Games | London, United Kingdom | 34th (h) | 400m | 46.35 | ||
| 9th (h) | 4 × 400 m relay | 3:02.86 | ||||
| 2013 | World Championships | Moscow, Russia | 7th (h) | 4 × 400 m relay | 3:01.73 | |
| 2014 | IAAF World Relays | Nassau, Bahamas | 19th (h) | 4 × 400 m relay | 3:05.16 | |
Outdoor
Indoor