When is Zepeda vs Kambosos Jnr?
William Zepeda could square off against George Kambosos in Summer 2025 Riyadh.
The fight would take place over 12 rounds in the Lightweight division, which means the weight limit would be 135 pounds (9.6 stone or 61.2 kg).
would be making his 2nd defense of the WBC Interim World Lightweight Championship. He won this belt against Zepeda vs Kambosos Jnr in January 1970.He has held this belt for 55 years, 3 months and 3 days.
Zepeda vs Kambosos Jnr stats
William Zepeda would step into the ring with an undefeated record of 33 wins, zero losses, and 0 draws, 27 of those wins coming by way of knockout.
George Kambosos would make his way to the ring with a record of 22 wins, 3 losses and 0 draws, with 10 of those wins by knockout.
The stats suggest Zepeda would have a massive power advantage over Kambosos Jnr, boasting a 82% knockout percentage compared to Kambosos Jnr's 45%.
William Zepeda is the younger man by 3 years, at 28 years old.
Zepeda has a 2-inch reach advantage.
William Zepeda fights out of the southpaw stance, while George Kambosos is an orthodox fighter.
Zepeda is currently arguably the less experienced fighter, having had 8 more fights, and made his debut in 2015, 2 years and 5 months later than Kambosos Jnr, whose first professional fight was in 2013. He has fought 29 fewer professional rounds, totaling 160 compared to Kambosos Jnr's 189.
William Zepeda goes into the fight ranked number 1 by the WBA, and 5 by The Ring at lightweight.
Zepeda vs Kambosos Jnr form
Zepeda remains undefeated as a professional, stopping 3 of his last 5 opponents.
In his last fight, he won against Tevin Farmer on March 29, 2025, by majority decision in their WBC Interim World Lightweight championship fight at Cancun, Quintana Roo, Mexico.
Prior to that, he had won against Tevin Farmer on November 16, 2024, by split decision in their 10 round contest at The Venue Riyadh Season, Riyadh, Saudi Arabia.
Going into that contest, he had beaten Giovanni Cabrera on July 6, 2024, by knockout in the 3rd round at Toyota Arena, Ontario, United States.
Before that, he had defeated Maxi Hughes on March 16, 2024, by technical knockout in the 4th round in their IBF World Lightweight eliminator fight at The Chelsea, Las Vegas.
He had won against Mercito Gesta on September 16, 2023, by knockout in the 6th round at Commerce Casino, Commerce.
George Kambosos has beaten 2 of his last 5 opponents.
In his last fight, he defeated Jake Wyllie on March 22, 2025, by unanimous decision in their 12 round contest at Qudos Bank Arena, Sydney, Australia.
Prior to that, he had been beaten by Vasyl Lomachenko on May 12, 2024, by technical knockout in the 11th round in their IBF World Lightweight championship fight at RAC Arena, Perth.
Going into that contest, he had defeated Maxi Hughes on July 22, 2023, by majority decision in their IBF World Lightweight eliminator fight at FireLake Arena, Shawnee, United States.
Before that, he had lost to Devin Haney on October 16, 2022, by unanimous decision in their IBF World Lightweight, WBA Super World Lightweight, WBC World Lightweight and WBO World Lightweight championship fight at Rod Laver Arena, Melbourne, Australia.
He had been beaten by Devin Haney on June 5, 2022, by unanimous decision in their The Ring Lightweight, WBA World Lightweight, IBF World Lightweight and WBO World Lightweight championship fight at Marvel Stadium, Melbourne.
Activity check
In terms of recent activity, William Zepeda has been fighting more than George Kambosos.
William Zepeda last fought 1 month and 23 days ago, while George Kambosos' last outing was 2 months ago.
Zepeda's last 5 fights have come over a period of 1 year, 8 months and 6 days, which means he has been fighting approximately every 4 months and 2 days. In those fights, he fought a total of 35 rounds, meaning that they have lasted 7 rounds on average.
Kambosos Jnr's last 5 fights have come over a period of 2 years, 11 months and 17 days, meaning he has been fighting on average every 7 months and 4 days. In those fights, he fought a total of 59 rounds, meaning that they have lasted 11.8 rounds on average.
What are the odds on Zepeda vs Kambosos Jnr?
Sorry, we couldn’t find any odds for Zepeda vs Kambosos Jnr yet. If odds are not available initially after the fight is announced, bookmakers usually release them closer to the day of the fight.
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