From BoxRec

Hilario Zapata 117 lbs lost to Harold Petty 118 lbs by TKO at 2:38 in round 10 of 12

  • Date: 1983-11-09
  • Location: Showboat Hotel & Casino, Sports Pavilion, Las Vegas, Nevada, USA
  • Referee: Richard Steele

Petty's corner threw in the towel. Zapata lost two points in the 4th round due to low blows.

Source: Las Vegas Review-Journal