Marcin Marciniszyn (born 7 September 1982, in Bystrzyca Kłodzka) is a Polish sprinter who specializes in the 400 metres.

Competition record 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 4 × 400 m relay2003 World Indoor Championships, men's 4x400 m relay final – Die Leichtatletik-Statistik-Seite 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 relay2005 European Indoor Championships, men's 4x400 m relay final – Die Leichtatletik-Statistik-Seite 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

Personal bests Outdoor 100 metres – 10.76 s (2012) 200 metres – 21.07 s (2011) 400 metres – 45.27 s (2011)

Indoor 400 metres – 46.64 (2006)

References