Semi-Final 1 of Robot Wars: The Sixth Wars was the first of two Semi-Finals which determined the Grand Finalists of Robot Wars: The Sixth Wars. Each Semi-Final had three initial battles, with a Losers Melee to decide which defeated robot would receive a second chance. The three first round winners and the winner of the Losers Melee would then pair off to decide which two robots would progress to the Grand Final. The episode featuring Semi-Final 1 was originally broadcast on October 2, 2002 on BBC Choice and repeated on February 21, 2003 on BBC Two.