[2] He was a key player on the Skallagrímur team that went to the 2006 Úrvalsdeild finals where it lost to Njarðvík.

[7][8][9] On January 13, 2018, he helped Tindastóll to its first major title when they beat KR in Icelandic Basketball Cup finals.

In an interview with Vísir.is, he stated that his departure from Tindastóll was for personal reasons and denied rumors of his alleged unhappiness with the club signing Brynjar Þór Björnsson during the off-season.

[14] Axel was a member of the Icelandic national basketball team from 2006 to 2017, appearing in 57 games.

[17] Axel is the son of former Icelandic national team members Katrín Axelsdóttir and Kári Marísson.