William Zepeda Segura achieved a career-defining victory on Saturday, August 1, 2026, defeating Lamont Roach Jr. by unanimous decision to claim the vacant WBC Lightweight World Championship. The championship bout took place at The Theater at Virgin Hotels Las Vegas, marking the culmination of Zepeda’s professional boxing journey, which began in November 2015.
This win firmly establishes Zepeda, known as “El Camarón,” as a major force in boxing’s competitive lightweight division. The Mexican fighter’s triumph ended a long pursuit of a world title, coming after years of sacrifice and hard work.
William Zepeda achieves world champion status
William Zepeda, 30, from San Mateo Atenco, Mexico, secured the coveted WBC belt after 12 hard-fought rounds. His relentless pressure and high-volume attack overwhelmed Roach Jr. throughout the contest.
Judges scored the fight 117-111, 117-111, and 118-110, all in Zepeda’s favor. This decisive win finally brought him the green belt he had long sought.
Zepeda’s post-fight remarks highlighted his long journey to this moment. “This has been a sacrifice and a struggle with my family, my team, and everything,” he said through an interpreter. “All the support, and it has finally come true.”
A decade-long boxing career culminates
Zepeda’s professional career spans over a decade, starting with his debut on November 14, 2015. He entered this title fight with an impressive record of 34 wins, 1 loss, and 0 draws, including 27 knockouts.
The victory against Roach Jr. improved his record to 35-1. His only previous defeat came against Shakur Stevenson for the WBC Lightweight title in July 2025.
“Against Shakur, it was an exam I couldn’t pass and you know what? It was humbling,” Zepeda reflected. “But we took the time, we came back stronger, worked on the weaknesses, and came back, and now we’re champion.”
Path to the vacant WBC lightweight title
The WBC lightweight title became vacant on February 4, 2026, after Shakur Stevenson was stripped of the belt. Stevenson had moved up to the super lightweight division, 140 pounds, and faced issues with sanctioning fees and formal rule adherence.
The WBC stated that its rules prohibit champions from simultaneously holding world titles from other governing bodies in separate weight classes if they are not WBC titles. Zepeda, who previously held the WBC interim lightweight title from 2024 to 2025, was automatically positioned as the number one contender.
This set the stage for his championship challenge against Roach Jr. for the now vacant strap. The fight was broadcast worldwide on DAZN, and in the US on TNT and TruTV as part of “The Fight” series.
Lamont Roach Jr. unable to match intensity
Lamont Roach Jr., nicknamed “The Reaper,” brought a strong record of 25 wins, 1 loss, and 3 draws into the contest. The 30-year-old American from Washington, D.C., was coming off a controversial majority draw against Gervonta “Tank” Davis in March 2025 for the WBA lightweight title.
Many boxing observers felt Roach Jr. should have won that bout. This intense showdown followed earlier reports of a Zepeda-Roach Jr. title clash for the vacant belt.
Despite his experience and prior title as WBA super featherweight champion from 2023 to 2025, Roach Jr. couldn’t withstand Zepeda’s relentless work rate. “He and his team were well prepared tonight,” Roach Jr. conceded. “They had a tremendous game plan, and he put it into play. No excuses. He was just one step ahead of me.”
Muratalla defends IBF crown in co-main event
In the co-main event, Raymond “Danger” Muratalla successfully defended his IBF Lightweight Championship against Robson Conceição. Muratalla, 29, controlled the action throughout the fight, earning a unanimous decision over the experienced Brazilian.
This victory came on the same card as Zepeda’s triumph in Las Vegas. Golden Boy Promotions now boasts a world champion in Zepeda, a fighter who embodies a high-volume fighting style.
His aggressive approach was famously showcased in October 2022 when he set three CompuBox lightweight records against Joseph “JoJo” Diaz for total punches and jabs attempted. This consistent pressure has become Zepeda’s trademark in the ring.
Future prospects for the lightweight division
With William Zepeda now holding the WBC lightweight title, the division remains one of boxing’s most dynamic. Zepeda has expressed his ambition to become an undisputed champion, setting high goals for his reign.
Potential unification bouts could include a clash with WBO titleholder Abdullah Mason in late 2026. Earlier discussions had explored a potential Zepeda-Navarrete showdown, predicted by some as a “bloodbath.”
A high-profile fight against Gervonta “Tank” Davis also looms as a possibility, which would significantly raise Zepeda’s profile. Meanwhile, Raymond Muratalla, having successfully defended his IBF title, is reportedly considering vacating his belt.
This potential move could open new avenues for other contenders like Floyd Schofield and Lucas Bahdi, who might vie for the vacant WBA belt. The lightweight division is set for more exciting matchups as these champions and contenders navigate their paths.
