Pernell Whitaker vs. Juan Nazario

Pernell Whitaker 135 lbs beat Juan Nazario 135 lbs by KO at 2:59 in round 1 of 12

• Date: 1990-08-11
• Location: Caesars Tahoe, Outdoor Arena, Stateline, Nevada, USA
• Referee: Mills Lane
• Judge: Patricia Morse Jarman
• Judge: Dave Moretti
• Judge: Ray Solis

• WBC World Lightweight Title (3rd defense by Whitaker)
  
• WBA World Lightweight Title (1st defense by Nazario)
  
• IBF World Lightweight Title (5th defense by Whitaker)

Notes

• Whitaker was a 9-1 favorite.
• There was a crowd of 5,500.
• Whitaker's purse was $500,000 and Nazario's was $450,000.
• Nazario was put down for the count with a left to the chin.
• Whitaker became the first Undisputed World Lightweight Champion since Roberto Duran in 1978.