Boxing Result

Oscar Duarte Wins Decision Over Kenneth Sims Jr

Oscar Duarte profile photo

Oscar Duarte

VS
Kenneth Sims Jr profile photo

Kenneth Sims Jr

Fight Details

Fight

Oscar Duarte vs Kenneth Sims Jr

Date & Time

Saturday, August 2nd, 2025

Championship

12 Round Super Lightweight Bout

Venue

Credit Union 1 Arena
Credit Union 1 Arena, Chicago, Illinois

How to Watch

DAZN

Promoter

Golden Boy Promotions

Fight Report

From the first bell at the University of Illinois, Chicago, Oscar Duarte and Kenneth Sims Jr. delivered a contest that exemplified the grit and drama boxing fans crave from a world-level eliminator. The super lightweight bout held significant stakes: a mandatory shot at the WBA championship, and for both men, a step closer to validation at the sport's elite level. Duarte, coming in on the heels of knockout wins and a ferocious reputation, was pitted against Sims, a technician regarded for his ring IQ and movement. Though Sims enjoyed the support of a home crowd, Duarte's unrelenting advance and superior firepower would ultimately shape the night.

In the earlier rounds, Sims Jr. employed puckish lateral movement and a piston-like jab to stave off Duarte's pressure. Sims' composure was evident, popping sharp combinations and pivoting out of danger, particularly over the first three frames. His shot selection was crisp: lead rights followed by left hooks and occasional forays to the body. Sims' approach was textbook—using quick feet to keep the harder-hitting Duarte at bay and forcing him to reset. Duarte, trained under Robert Garcia, tried to time Sims, applying subtle head movement while seeking an opening for his left hook. Still, Sims took the opening stanza on many observers' cards and appeared to be dictating pace and range with his jab and lateral movement.

Yet the dynamic shifted abruptly in the fourth. Duarte managed to walk Sims onto a left hook to the temple—a blow that visibly shook the Chicago native. After that, Sims' legs lost some of their spring; his movement grew laboured, a testament to both Duarte's timing and accumulating pressure. Seizing on the moment, Duarte pressed the action, trapping Sims against the ropes and launching salvos to the body and head. Sims remained game, firing counters where possible, but his output dipped as Duarte's work rate and physicality became harder to match. The Mexican's left hook, in particular, became a signature weapon, and his relentless attacks downstairs sapped more of Sims' stamina. Punch stats through the middle rounds reflected the Mexican's advantage: Duarte was outlanding and out-throwing Sims, keeping the action at a pace he favoured.

Rounds five through eight showcased a compelling blend of technical skill and will. Sims, showing the heart of a fighter, tried to regain lost ground, standing his ground more often and engaging in close quarters. His right hand found a home occasionally, but Duarte's combinations—particularly his body punching—chipped away at Sims' resilience. Despite moments of success with his jab and overhand right, Sims repeatedly found himself backed up, forced to clinch when Duarte closed the gap and let his hands go in torrents. The pressure, though unflashy, was effective; Duarte's accuracy, especially with the left hook, ensured that Sims could never safely settle into a rhythm. The quiet intensity in the arena peaked, with fans sensing the momentum shifting for good.

As the championship rounds approached, both fighters bore visible signs of battle. Each man had their moments: Sims' slick counters drew applause, while Duarte's powerful salvos and persistent offence continued to impress the judges. What ultimately separated the two was Duarte's ability to impose his style and sap Sims' legs. In the eleventh and twelfth, Sims summoned a final rally, digging deep for combinations and tying up when necessary, but Duarte responded by again trapping his foe and scoring to the body with both hands. The final bell capped twelve action-packed rounds—both boxers raised their arms, but those at ringside suspected the relentless pressure and heavier hands of Duarte had swayed the cards.

The judges rendered a majority decision for Oscar Duarte: scores read 116-112 and 115-113 in his favour, with one judge seeing the fight even at 114-114. Statistically, Duarte's aggression paid off—he out-threw Sims by a decent margin and landed the more telling blows. For Sims, it marked his third career defeat (now 22-3-1, 8 KOs), but he earned respect for his resilience and technical skill, particularly in the early rounds. For Duarte, the victory elevated his record to 30-2-1 (23 KOs), further cementing his status as one of the division's most formidable pressure fighters. At night's end, his team celebrated not just a win, but also a likely world title shot—a testament to his perseverance after setbacks, notably his loss to Ryan Garcia in late 2023.

Atmosphere-wise, the event reflected the passion of Chicago's boxing fans. Despite Sims' local following, Duarte's persistent crowd-pleasing style drew neutral observers into his corner by the late rounds. The stakes fueled a palpable tension, especially in the middle stanzas, as every landed blow or shift in momentum drew gasps and cheers. While there was no knockdown, the sustained violence and high-level tactics gave fans their fill of drama. As Duarte basks in the victory, he now positions himself for a mandatory challenge against the WBA super lightweight world champion—a reward both for his technical growth under Robert Garcia and his signature tenacity inside the ropes.

In post-fight interviews, Duarte acknowledged Sims' skill and toughness, noting, "He was a slick boxer, but eventually pressure breaks pipes. I had to break him down slowly, not rush it." For Sims, disappointment was evident, but he said, "I felt I did enough early, but I got caught and had to adapt. I'll be back stronger." Both left the ring with enhanced reputations, and fans departed the venue with the sense they'd seen a crossroads fight between two world-level operators.

Undercard

Regis Prograis VS Joseph Diaz
Tristan Kalkreuth VS Kareem Hackett
Joshua Edwards VS Cayman Audie
Yair Benjamin Gallardo-Lozano VS Quinton Rankin
Gael Cabrera VS TBA
Mehki Phillips VS Waldemar Carril Areizaga

What Happened After

Fighter History

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