The vertical drop for a Super-G course must be between 350–650 m (1,150–2,130 ft) for men, 350–600 m (1,150–1,970 ft) for women, and 250–450 m (820–1,480 ft) for children. In the Olympic Winter Games, FIS World Ski Championships, and FIS World Cups, minimums are raised to 400 m (1,300 ft) for both men and women. Courses are normally at least 30 m (98 ft) in width, but sections with lower widths are permissible if the line and terrain before and after allow it. Higher widths can also be required if deemed necessary. Gates must be between 6 m (20 ft) and 8 m (26 ft) in width for open gates, and between 8 m (26 ft) and 12 m (39 ft) in width for vertical gates. The distance between turning poles of successive gates must be at least 25 m (82 ft). The number of direction changes must be at least 7% of the course drop in meters (6% for Olympic Winter Games, FIS World Ski Championships and FIS World Cups).