| Rank | Event | Year | Location | Result |
| Olympic Games | ||||
| Semifinal | 800m | 2008 | Beijing, CHN | 1:47.24 |
| World Championships | ||||
| 4 | 800m | 2011 | Daegu, KOR | 1:44.80 |
| 8 | 800m | 2009 | Berlin, GER | 1:46.17 |
| European Championships | ||||
| 1 | 800m | 2010 | Barcelona, ESP | 1:47.07 |
| Diamond League | ||||
| 1 | 800m | 2010 | Stockholm, SWE | 1:45.06 |
| 2 | 800m | 2011 | Birmingham, GBR | 1:45.47 |
| 2 | 800m | 2011 | Lausanne, SUI | 1:45.01 |
| 3 | 800m | 2010 | Oslo, NOR | 1:44.56 |
| 4 | 800m | 2011 | Brussels, BEL | 1:44.53 |
| 4 | 800m | 2010 | Brussels, BEL | 1:44.97 |
| 4 | 800m | 2010 | Lausanne, SUI | 1:44.30 |
| 6 | 800m | 2011 | Doha, QAT | 1:46.42 |
| 8 | 800m | 2012 | Shanghai, CHN | 1:48.51 |
| Golden League | ||||
| 8 | 800m | 2009 | Brussels, BEL | 1:47.55 |
| 8 | 800m | 2009 | Zurich, SUI | 1:44.89 |
| World Challenge | ||||
| 2 | 1000m | 2011 | Rabat, MAR | 2:15.76 |
| 2 | 800m | 2010 | Hengelo, NED | 1:46.23 |
| 3 | 800m | 2010 | Ostrava, CZE | 1:45.04 |
| 4 | 800m | 2012 | Hengelo, NED | 1:44.34 |
| 4 | 800m | 2011 | Hengelo, NED | 1:45.47 |
| 5 | 800m | 2011 | Rieti, ITA | 1:44.53 |
| 5 | 800m | 2010 | Rieti, ITA | 1:44.10 |
| Super Grand Prix | ||||
| 3 | 800m | 2009 | Lausanne, SUI | 1:45.27 |
Occupation
Athlete
Education
Physical Education - University of Szczecin, Szczecin, POL
Club name
WKS Zawisza Bydgoszcz, Bydgoszcz, POL
Coach
Tomasz Lewandowski [brother] (gwizdek24.se.pl, 12 Jan 2012)
Other sports
His brother Tomasz Lewandowski is his coach and has also represented Poland in athletics. (gwizdek24.se.pl, 12 Jan 2012, marcin-lewandowski.pl, 2012)
Debut
2006 for Poland (iaaf.org, 2011)
Additional information
Start of sporting career
He took up athletics at age 15 at school. (iaaf.org, 31 Aug 2010)
General
SPECIALIST TRAINING
He has visited a biomechanics specialist in Lisbon, Portugal, to improve his muscle work. (gwizdek24.se.pl, 12 Jan 2012)
Previous Olympics
Beijing 2008
