[4] In 1996, he secured victory at the inaugural Nias Indonesian Pro[5][6] and earned the title of "Best free-surfer in the world" in consecutive years (1998 and 1999) according to Australia's Surfing Life.

[7] Known by the moniker "Margo", he is often praised for his stylish regular foot, characterized by a smooth and powerful technique, making him a captivating presence in the world of surfing.

[9] Margieson's career predominantly involved extensive travel to remote locations, funded by sponsors, where he engaged in editorial photoshoots for both Australian and international surfing publications.

In 2003, Justin Gane Productions released Wanderjahr: The Margo Project, a documentary offering insights into the life and journeys of Brenden 'Margo' Margieson.

In 2018, Micah secured the Australian Junior Title,[13] showcasing powerful maneuvers reminiscent of his father's style while adding his distinctive touch.