|Born||24 November 1981|
|Career record||39-12 (at ATP Tour level, Grand Slam level, and in Davis Cup)|
|Highest ranking||No. 703 (7 May 2007)|
|Career record||25-19 (at ATP Tour level, Grand Slam level, and in Davis Cup)|
|Career titles||3 ITF|
|Highest ranking||No. 518 (8 October 2007)|
Sigurðsson had a career high ATP singles ranking of 703 achieved on 7 May 2007. He also had a career high ATP doubles ranking of 518 achieved on 8 October 2007. Sigurðsson holds the record for the number of Icelandic national titles, winning 15 singles, 15 doubles and 8 mixed doubles titles in his career.
|Win||1-0||Oct 2006||Mexico F19, Monterrey||Futures||Hard||Simon Childs|| Alexander Sadecky
|Loss||1-1||Apr 2007||Turkey F2, Manavgat||Futures||Clay||Brett Ross|| Steve Darcis
Fred Hemmes Jr.
|Loss||1-2||Jun 2007||Norway F2, Gausdal||Futures||Hard||Heinrich Heyl|| Jacob Melskens
|Win||2-2||Sep 2007||United States F23, Costa Mesa||Futures||Hard||Brad Pomeroy|| Philip Bester
|3-6, 6-3, [10-4]|
|Win||3-2||Sep 2007||Mexico F6, Monterrey||Futures||Clay||Adam Thompson|| Peter Gojowczyk