Since 1973 the competitive sport of jump rope/ skipping has made its indelible mark on the world of sports. Since that time the sport has experienced tremendous growth and development and has evolved into the International Jump Rope Union (IJRU), the sole international governing body of jump rope. IJRU represents the merged international federations of Fédération Internationale de Saut à la Corde – International Rope Skipping Federation (FISAC-IRSF) and the World Jump Rope Federation (WJRF). These two entities have produced 21 world championships. Today IJRU enjoys Observer Status with the GAISF.