| Rank | Event | Year | Location | Result |
| Olympic Games | ||||
| 1 | Decathlon | 2004 | Athens, GRE | 8893 |
| 2 | Decathlon | 2000 | Sydney, NSW, AUS | 8606 |
| 6 | Decathlon | 2008 | Beijing, CHN | 8241 |
| World Championships | ||||
| 1 | Decathlon | 2007 | Osaka, JPN | 8676 |
| 2 | Decathlon | 2005 | Helsinki, FIN | 8521 |
| 2 | Decathlon | 2003 | Paris, FRA | 8634 |
| 11 | Decathlon | 2009 | Berlin, GER | 8266 |
| 14 | Decathlon | 2011 | Daegu, KOR | 8069 |
| European Championships | ||||
| 6 | Decathlon | 2012 | Helsinki, FIN | 8052 |
| World Combined Events Challenge | ||||
| 2 | Decathlon | 2012 | Kladno, CZE | 8097 |
| 4 | Decathlon | 2009 | Gotzis, AUT | 8348 |
| 6 | Decathlon | 2012 | Helsinki, FIN | 8052 |
| 6 | Decathlon | 2008 | Beijing, CHN | 8241 |
| World Indoor Championships | ||||
| 5 | Heptathlon | 2010 | Doha, QAT | 6024 |
Nickname
Seba. (Czech Media Guide, 2004)
Hobbies
Football and golf. (Czech Team Media Guide, 2008)
Occupation
Serves in the Army
Family
Wife Eva Kasalova, son Stepan, daughter Katerina.
Language(s) spoken
English
Club name
TJ Dukla Praha, Prague, CZE
Coach
Dalibor Kupka (decathlon2000.com, 30 Jan 2012)
Injuries
In 2008 he injured a thigh muscle during the World Indoor Championships in Valencia, Spain. (czech.cz, 10 Mar 2008)
In 2007 he wandered too close to the javelin practice area and was hit in the shoulder. Luckily the javelin just missed his neck and required only 11 stitches. (trackandfield.about.com, 01 Nov 2010)
Additional information
Start of sporting career
He began decathlon at age 18. (vase6.cz, 04 Apr 2012)
Reason for taking up this sport
He enjoyed watching it on television. (Turner Sports, 2001)
Most memorable sporting achievement
Winning a gold medal in the decathlon at the 2004 Olympic Games in Athens and breaking Daley Thompson's 20-year-old Olympic record in the process. (Czech.cz, 17 Jun 2007)
Sporting philosophy / motto
"Don't do to others what you don't like." (Czech Media Guide, 2004)
Awards
He was named Czech Athlete of the Year in 2002 and 2003. (Eurotel, 27 Jul 2005)
Previous Olympics
Beijing 2008, Athens 2004, Sydney 2000
