|Date||July 23, 2011|
|Venue||Mandalay Bay Resort & Casino, Las Vegas, United States|
|Title(s) on the line||WBA/IBF Light Welterweight Championships|
|Tale of the tape|
|Khan defeats Judah by 5th round Knockout|
At the weigh-in Khan and Judah both made weight weighing in on the 140 lbs limit.
The fight was televised on the pay-per-view channel Primetime (UK) with commentary on BBC 5 Live and BBC Sport website and HBO. Amir Khan started the fight with a left jab. Round 1 saw a busy Amir Khan as he fought from the outside and kept Judah away with jabs and straights. All four rounds were taken by Khan. Ultimately on the 5th round Zab was taken down with a right uppercut to the body, in which at first commentators believed it was a low blow, since Judah was showing signs of agonizing pain, but when it was seen from a different camera angle, it was right on the belt, leading to a Knockout for Amir Khan. He held the IBF and WBA Light Welterweight titles until a controversial defeat at the hands of Lamont Peterson.
- Junior Welterweight Championship bout Amir Khan vs. Zab Judah
- Middleweight bout Peter Quillin vs. Jason LeHoullier
- Quillin defeats LeHoullier via technical knockout at 1:38 of fifth round
- Featherweight bout Gary Russell Jr. vs. Eric Estrada
- Russell Jr. defeats Estrada via unanimous decision. (80-71, 80-71, 80-71)
- Middleweight bout James Kirkland vs. Alexis Hloros
- Kirkland defeats Hloros via technical knockout at 0:25 of second round
- Featherweight bout Ronny Rios vs. Noe Lopez Jr.
- Rios defeated Lopez Jr. via technical knockout at 1:12 of first round
- Super Middleweight bout Josiah Judah vs. Rafael Jastrzebski
- Judah defeats Jastrzebski via majority decision. (59-55, 58-56, 57-57)
- Heavyweight bout Bryant Jennings vs. Theron Johnson
- Jennings defeats Johnson via unanimous decision. (60-53, 59-54, 60-53)
- Lightweight bout Jamie Kavanagh vs. Marcos Herrera
- Kavanagh defeats Herrera via unanimous decision. (59-54, 60-54, 60-53)
Reported fight earnings
- US earnings: Amir Khan ($1,072,500) vs. Zab Judah ($500,000)
- UK earnings: Amir Khan (share of UK pay-per-view earnings)
- US viewership: 1.417 million
- Khan vs Judah Deal is Reached For July 23 in Las Vegas – Boxing News. Boxingscene.com. Retrieved on 2011-06-02.
- BBC Sport – Amir Khan to defend WBA title against Zab Judah. BBC News. Retrieved on 2011-06-02.
- WBN News -Amir Khan and Zab Judah continue their Twitter war Archived June 16, 2011, at the Wayback Machine. WBN News Retrieved on 2011-06-13.
- Boxing Scene - Amir Khan and Zab Judah both weigh 140lbs. Boxing Scene Retrieved on 2011-07-22.
- "Este Sábado x Combate Space todos apoyando a Amir Khan!". Zarpado (in Spanish). July 22, 2011.