Rahlves earned three World Championships medals, a gold in 2001 in the Super-G and a silver and bronze (downhill and giant slalom) in 2005. His best year in the overall World Cup standings was 2006, when he finished fourth. Rahlves' best years in the downhill standings were 2003 and 2004, when he placed second. He was also the runner-up in the Super G standings in 2004.