Undefeated Guatemalan Lester Martinez Faces Veteran Immanuwel Aleem for WBC Interim Super Middleweight Title

The fight caps off a ProBox Promotions card with the winner set to challenge for the full WBC super middleweight championship.

Mar. 21, 2026 at 10:34pm

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Undefeated Guatemalan boxer Lester Martinez (19-0-1, 16 KOs) will face seasoned veteran Immanuwel 'The Chosen One' Aleem (22-3-3, 14 KOs) in a 12-round battle for the WBC interim super middleweight championship at the National Orange Show Event Center in San Bernardino, California. Martinez, ranked No. 2 by the WBC, is looking to make history by becoming Guatemala's first-ever world champion, while Aleem, ranked No. 14, aims to solidify his status as a top contender and earn a shot at the full WBC title.

Why it matters

This fight carries major implications for the 168-pound division. A win for Lester Martinez would elevate him to the front of the line for a potential world title shot against the winner of the full WBC super middleweight title fight between Canelo Alvarez and Christian Mbilli. For Immanuwel Aleem, this is his chance to achieve the career milestone he's been chasing for years and establish himself as a top contender in the division.

The details

Lester Martinez, a 30-year-old contender from Guatemala City, has quickly built a reputation as a knockout artist, with 16 of his 19 wins coming via stoppage. Immanuwel Aleem, a 32-year-old from Richmond, Virginia, brings a wealth of experience and durability to the table, with over two dozen pro bouts against some of the toughest fighters in the sport. Both fighters successfully made weight on Friday, with Martinez tipping the scales at 167.4 pounds and Aleem weighing in at 167.6 pounds.

  • The full fight card will be streamed live and free of charge on the ProBox TV YouTube channel starting at 8:00 p.m. ET (5:00 p.m. PT) on Saturday, March 21, 2026.
  • The main event ring walks are scheduled for around 11:00 p.m. ET (8:00 p.m. PT) on Saturday, March 21, 2026.

The players

Lester Martinez

A 30-year-old undefeated Guatemalan boxer with a professional record of 19-0-1 and 16 knockouts. Ranked No. 2 by the WBC, he is looking to become Guatemala's first-ever world champion in boxing.

Immanuwel Aleem

A 32-year-old boxer from Richmond, Virginia, with a professional record of 22-3-3 and 14 knockouts. Ranked No. 14 by the WBC, he is determined to use this fight as a platform to claim his first world title.

Brian 'Bomac' McIntyre

The trainer of Lester Martinez, who has been impressed with his fighter's camp and preparation for the fight.

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What they’re saying

“We must not let individuals continue to damage private property in San Francisco.”

— Robert Jenkins, San Francisco resident

“Fifty years is such an accomplishment in San Francisco, especially with the way the city has changed over the years.”

— Gordon Edgar, grocery employee

What’s next

The winner of the fight between Lester Martinez and Immanuwel Aleem will be in line to challenge the winner of the full WBC super middleweight title fight between Canelo Alvarez and Christian Mbilli later this year.

The takeaway

This fight between the undefeated Lester Martinez and the experienced Immanuwel Aleem promises to be an action-packed and competitive battle for the WBC interim super middleweight championship, with the winner positioning themselves for a potential world title shot against the full WBC champion.