بطولة العالم لألعاب القوى داخل الصالات
Kind Butler III (born April 8, 1990) is an American track and field athlete who competes in the 400 meters. In 2014, along with teammates David Verburg, Kyle Clemons, and Calvin Smith Jr., he helped set a new world record in the 4x400 meter relay at the IAAF World Indoor Championships in Athletics in Sopot, Poland.