Marcin Kowalczyk
| Date of birth | 09 April 1985 |
| Place of birth | Wieruszow |
| Nationality | Polish |
| Height | 1.83 m |
| Position | Defender |
International stats
| Season | Team | Competition | Apps | Subs | Goals | Y | R |
|---|---|---|---|---|---|---|---|
| 2003-04 | Poland | UEFA Under-19 | 3 | ||||
| 2004-05 | Poland | UEFA Under-19 | 2 | ||||
| 2008-09 | Poland | FIFA World Cup | 2 |
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| 2008-09 | Poland | International Friendly | 1 |
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| 2009-10 | Poland | International Friendly | 2 | 1 |
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| 2010-11 | Poland | International Friendly | 1 |
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| 2013-14 | Poland | International Friendly | 1 |
Please note: Career stats are based on performances in the Premier and Football Leagues and (in most cases all) internationals.
International matches
| Date | Match | Result | Competition | Round | |
|---|---|---|---|---|---|
| 08 Oct 2003 | Poland v Latvia | W | 3-0 | UEFA U19 | Group 2 |
| 27 May 2004 | Poland v Scotland | W | 3-2 | UEFA U19 | Group 6 |
| 29 May 2004 | Finland v Poland | W | 0-2 | UEFA U19 | Group 6 |
| 13 Jul 2004 | Poland v Turkey | L | 3-4 | UEFA U19 | Final group 2 |
| 15 Jul 2004 | Germany v Poland | L | 3-1 | UEFA U19 | Final group 2 |
| 20 Aug 2008 | Ukraine v Poland | L | 1-0 | International Friendly | |
| 06 Sep 2008 | Poland v Slovenia | D | 1-1 | FIFA World Cup | Europe group 3 |
| 10 Sep 2008 | San Marino v Poland | W | 0-2 | FIFA World Cup | Europe group 3 |
| 14 Nov 2009 | Poland v Romania | L | 0-1 | International Friendly | |
| 18 Nov 2009 | Poland v Canada | W | 1-0 | International Friendly | |
| 03 Mar 2010 | Poland v Bulgaria | W | 2-0 | International Friendly | |
| 11 Aug 2010 | Poland v Cameroon | L | 0-3 | International Friendly | |
| 19 Nov 2013 | Poland v Republic of Ireland | D | 0-0 | International Friendly | |
Please note: Match history is complete for the Premier and Football Leagues and (in most cases all) internationals.