|Date of birth||10 July 1984|
|Place of birth||Nairobi, Kenya|
|Height||6 ft 2 in (1.88 m)|
|Playing position||Defender, Midfielder|
|2003–2006||Missouri Baptist Spartans|
|2006||St. Louis Lions||16||(9)|
|2011–2014||Sporting Kansas City||67||(3)|
|2016||Sporting Kansas City||19||(2)|
|* Senior club appearances and goals counted for the domestic league only and correct as of March 3, 2017.
‡ National team caps and goals correct as of September 6, 2015
College and amateur
Olum turned professional with the Portland Timbers of the USL First Division in 2007, before moving to the Minnesota Thunder in March 2009. He later played for the Austin Aztex and Orlando City, before moving to Sporting Kansas City of Major League Soccer in September 2011.
- Steve Brandon (10 April 2007). "Creative player trades dirt for turf". Portland Tribune.
- "Thunder add Portland's Olum". United Soccer Leagues. 4 March 2009. Archived from the original on 19 September 2011.
- Josh Whisenhunt (15 September 2011). "Sporting KC signs defender Lawrence Olum". Sporting Kansas City.
- Patrick Korir (23 November 2009). "Olum caught off guard by Stars call up". Futaa.com.
- "Kenya Coach Henri Michel announces CECAFA squad". kawowo.com. 17 November 2012. Retrieved 17 November 2012.