Career
He made his debut in the Norwegian Premier League in 1990, when he played for Kongsvinger Illinois. From 1995 he played for Odd Grenland and remained one of the main profiles until he was replaced by Rune Jarstein after suffering an injury in the 2005 season. He then went to Moss FK. During the final practice before the kick-off of the 2007 season in Norwegian football Holtan had a career-ending injury and retired a year prematurely. He went on to work as a goalkeeper coach for Moss.