He was the head coach of the Danish women's national basketball team from 2014 to 2017.
Hrannar coached for five seasons in the Icelandic Úrvalsdeild karla, accumulating a 62-34 record (64,6%).
[1][2] Although the team had the best record in the league it fell out in the quarter-finals in the playoffs against Keflavík.
[3] Hrannar took over as coach of SISU BK late in the 2009-2010 season when the team was in 8-9th place and helped it achieve 2nd-place finish.
[5] In May 2014 he was hired as the head coach of the Danish women's national basketball team.