The Antrim boxer is now one win away from a medal.
Kurt Walker has stunned reigning World amateur boxing champion Mirazizbek Mirzakhalilov to reach the featherweight quarter-finals.
Four of the judges called the fight in favour of the Antrim man over the number one seed.
Walker is now one more win away from sealing at least a bronze medal.

Wales Stun All Blacks To End 73-Year Wait For Victory
Ireland Face Must-Win Kosovo Clash After Narrow Defeat To Austria
Kildare Trio Feature As Ireland Overcome Fiji In Nations Championship
Kildare's Sean O'Haire Kicks Dramatic Last-Minute Winner In American College Football
Sunday Morning Sports Update
Milltown Through To Leinster Intermediate Semi-Finals After Victory Over Meath Champions
Sarsfields Leinster Championship Campaign Ends After Heavy Defeat To Cuala
More Than 20 Horses Withdrawn At Cheltenham Over Ground Conditions