[1] After spending his first five seasons with ÍR and Snæfell, Sigurður signed with Woon!Aris Leeuwarden in Netherlands in 2005.

[5] On April 28, 2018, he won his third Icelandic championship after KR defeated Tindastóll in the Úrvalsdeild finals.

[6] On 4 May 2019 he won his 4th national championship after KR beat ÍR in the Úrvalsdeild finals 3–2.

[7] Sigurður has played 56 games for the Icelandic national basketball team.

[8] In 2010, Sigurður was found guilty of raping a 17-year-old girl in November 2009 and sentenced to two years in prison.