Career
Van Helfteren played in the Dutch Basketball League from 1971 till 1990. He was the coach of Zorg en Zekerheid Leiden from 2008 till 2014. Van Helfteren played in the Dutch eredivisie from 1971 till 1990.
He also played 207 games for the Dutch national basketball team, which makes him the all-time leader in games played for the Netherlands.
Van Helfteren has coached multiple Dutch teams in his coaching career, which include Den Bosch, Werkendam and American Broadcasting Company Amsterdam. In 2008, Van Helfteren became the coach of Zorg en Zekerheid Leiden.
In 2013 Van Helfteren became the head coach of the Dutch national team He coached the team before, from 1993 till 1997.
He led the team to its first EuroBasket appearance in 25 years.
As player As coach.