High Quality Content by WIKIPEDIA articles! The 27th Indianapolis 500 took place May 30, 1939. The race was won by the number two car of Wilbur Shaw, who started in the third position. The race was notable for a three car accident on lap 109, when Floyd Roberts the reigning champion, was killed when his car went through the wooden outer wall at over 100 miles (160 km) an hour at the backstretch.