Vésteinn Hafsteinsson is the most successful discus coach in the history of the sport. Under his guidance, Gerd Kanter won gold at the 2007 World Championships and 2008 Olympics. Daniel Ståhl became his second World Champion in Doha in 2019. Vésteinn also coached shot putter Joachim Olsen to a silver medal in the 2004 Olympics, and currently trains Sweden’s Fanny Roos, one of the best young putters in the world.