It took a while, but The Ring's No. 6 super middleweight contender emphatically got the job done by punishing, dominating and eventually stopping Immanuwel Aleem on Saturday at Dignity Health Sports Park.

After 10 one-sided rounds, Pacheco (26-0, 19 KOs) dropped and stopped Aleem (22-5-3, 14 KOs) in the 11th after his incredibly durable yet overmatched opponent succumbed to a tremendous offensive attack.

Referee Ray Corona ended the fight at 2:32 of the round once Aleem got back only to eat more unanswered shots while reeling around the ring.

Pacheco was credited with landing 266 of 602 punches, with Aleem returning 91 of 377, according to CompuBox.

Armed with new head coach Buddy McGirt in his corner, the lanky Pacheco leveraged his length and peppered Aleem with a prodigious jab that was followed by laser-sharp right hands. The 6-foot-4 Pacheco rinsed and repeated the process for most of the fight.

Pacheco essentially made it target practice against Aleem, who didn't offer much in return other than an occasional single shot. Aleem started breaking down in the last third of the fight, ultimately leading to his demise.

Pacheco kicked into second gear in the fifth round by mixing in head-snapping uppercuts and body shots.

Showcasing an offensive arsenal paid dividends in the final 30 seconds of the seventh round for Pacheco when he connected with a right uppercut and left hook to the body that had Aleem wobbling. Pacheco dialed up the pressure, but he wasn't able to drop Aleem.

Aleem's moments of success were few and far between, but he kept Pacheco honest by occasionally connecting with a rifle right hand, which he adamantly did in the final minute of the ninth.

Pacheco returned to the driver's seat in the 10th when he rocked Aleem in the final minute. Pacheco promoter Eddie Hearn sprung out of his seat and waved Pacheco on for the knockout, but Aleem ate every punch thrown his way.

It was a different scenario in the 11th as Pacheco closed the show in style.

Aleem came into the clash following a one-sided, 12-round unanimous-decision defeat against Lester Martinez in March, and he wasn't able to offer anything much different for Pacheco.

Pacheco, 25, returned to the "War Grounds" in a homecoming to headline a Matchroom Boxing card on DAZN for the first time since headlining in the adored open-air arena in August 2024 with a sensational stoppage against Maciej Sulecki. But Pacheco's next three fights in 2025 were filled with lackluster decision wins against Steven Nelson, Trevor McCumby and Kevin Lele Sadjo.

After the Sadjo fight in December, a bout in which he was knocked down for the first time in his career, Pacheco openly admitted he needed to improve.

There was definitely more to be desired from Pacheco's performances as he entered a pivotal period in his career, especially as he declined fights against Christian Mbilli and Hamzah Sherraz due to unfavorable timing.

So Pacheco made changes in management, coaching, renewed a promotional deal with Matchroom and moved away from David Benavidez Sr. in Seattle and headed back home to his family in Los Angeles to hit the reset button on his life and career.

The series of moves appears to have mended matters, but Aleem paled in comparison to the pittings Pacheco is keen on. After the fight, Pacheco called for a clash against Jaime Munguia.

Manouk Akopyan is The Ring’s lead writer. Follow him on X and Instagram: @ManoukAkopyan