Complex sentence: In 1999 Palander won the world championship in slalom, he also won the Alpine skiing World Cup in slalom during the 2002-2003 season and was fourth in the overall standings.
Split into simpler sentences: In 1999 Palander won the world championship in slalom. He also won the Alpine skiing World Cup in slalom during the 2002--2003 season, and was fourth in the overall standings.