Duarte vs Sims Jr

Who won Duarte vs Sims Jr?

Oscar Duarte beat Kenneth Sims Jr by majority decision in their 12 round contest on Saturday, August 2nd, 2025, at Credit Union 1 Arena, Chicago.

The scorecards were announced as 115-113, 114-114, 116-112 in favor of winner Oscar Duarte.

The fight was scheduled to take place over 12 rounds in the Super Lightweight division, which meant the weight limit was 140 pounds (10 stone or 63.5 kg).

The undercard featured the clash of Prograis vs Diaz.

Duarte vs Sims Jr stats

Oscar Duarte stepped into the ring with a record of 29 wins, 2 losses, and 1 draw.

Kenneth Sims Jr made his way to the ring with a record of 22 wins, 2 losses and 1 draw.

Oscar Duarte was the younger man by 2 years, at 29 years old.

Sims Jr had a height advantage of 1 inch over Duarte. Despite this, he had a 2-inch reach advantage.

Both Oscar Duarte and Kenneth Sims Jr fought out of an orthodox stance.

Duarte was the more experienced professional fighter, having had 7 more fights, and made his debut in 2013, 10 months earlier than Sims Jr, whose first professional fight was in 2014. He had fought 20 more professional rounds, totaling 175 compared to Sims Jr's 155.

Oscar Duarte went into the fight ranked number 5 by the WBA at super lightweight.

Kenneth Sims Jr was ranked number 4 by the WBA, and 7 by the IBF in the 140lb division.

Duarte vs Sims Jr form

Duarte had beaten 4 of his last 5 opponents, stopping 3 of them, going the distance once.

In his last fight before this contest, he had defeated Miguel Madueno on February 15, 2025, by knockout in the 7th round at Honda Center, Anaheim, United States.

Prior to that, he had defeated Batyr Akhmedov on November 16, 2024, by unanimous decision in their 10 round contest at The Venue Riyadh Season, Riyadh, Saudi Arabia.

Going into that contest, he had beaten Joseph ‘Jo Jo’ Diaz on April 27, 2024, by knockout in the 9th round at Save Mart Arena, Fresno, United States.

Before that, he had been beaten by Ryan Garcia on December 2, 2023, by knockout in the 8th round at Toyota Center, Houston.

He had won against D Angelo Keyes on May 27, 2023, by technical knockout in the 7th round at Fantasy Springs Resort Casino, Indio.

Sims Jr had won 5 of his most recent fights, stopping 3 of them, going the distance twice.

In his last fight leading up to this contest, he had beaten Kendo Castaneda on February 15, 2025, by unanimous decision in their 10 round contest at Honda Center, Anaheim, United States.

Prior to that, he had beaten Jhonatan Romero on August 10, 2024, by technical knockout in the 5th round at Mandalay Bay Hotel & Casino, Mandalay Bay Events Center, Las Vegas.

Going into that contest, he had defeated Batyr Akhmedov on May 13, 2023, by majority decision in their WBA World Super Lightweight eliminator fight at The Cosmopolitan of Las Vegas, Chelsea Ballroom, Las Vegas.

Before that, he had won against Rock Dodler Myrthil on December 17, 2022, by technical knockout in the 5th round at The Cosmopolitan of Las Vegas, Chelsea Ballroom, Las Vegas.

He had defeated Cristian Ruben Mino on August 21, 2022, by technical knockout in the 5th round at Caribe Royale Orlando, Orlando.

Activity check

In terms of activity leading into the fight, Oscar Duarte had been fighting more than Kenneth Sims Jr.

Going into this contest, Oscar Duarte had last fought 5 months and 18 days ago, while Kenneth Sims Jr's last outing had been 5 months and 18 days ago.

Duarte's last 5 fights had come over a period of 2 years, 2 months and 6 days, which means he had been fighting approximately every 5 months and 8 days. In those fights, he fought a total of 41 rounds, meaning that they had lasted 8.2 rounds on average.

Sims Jr's last 5 fights had come over a period of 2 years, 11 months and 12 days, meaning he had been fighting on average every 7 months and 3 days. In those fights, he fought a total of 37 rounds, meaning that they had lasted 7.4 rounds on average.

What time did Duarte vs Sims Jr start?

The fighters were expected to ringwalk at around 11:00 PM EST / 8:00 PM PST at Credit Union 1 Arena, Chicago, United States, which was around 4:00 AM BST in the UK.

Who broadcast Duarte vs Sims Jr?

The DAZN show began at 8:00 PM EST / 5:00 PM PST. The DAZN Global broadcast of the card started at 1:00 AM (BST).

What were the odds on Duarte vs Sims Jr?

Oscar Duarte was a 8/13 (-160) favorite going into the contest, while Kenneth Sims Jr made his way into the ring at 5/4 (+130) with oddsmakers.