Oscar Collazo Stops Jesus Haro in Seventh Title Defense

Puerto Rican boxer continues dominance in minimumweight division

Mar. 15, 2026 at 5:50pm

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Oscar 'El Pupillo' Collazo secured his seventh consecutive title defense with a stoppage win over Jesus Haro on Saturday night in Anaheim, California. The victory is the latest in a string of successes for Puerto Rican boxers, including Amanda Serrano, Xander Zayas, and even Bad Bunny.

Why it matters

Collazo's triumph solidifies his position as a force in the 105-pound division and is part of a larger narrative of Puerto Rican success in the boxing world. The focus on developing young talent, as exemplified by Zayas, is crucial for sustaining Puerto Rico's boxing success.

The details

Collazo, now 14-0 with 12 knockouts, controlled the fight from the outset, relentlessly pressuring Haro and landing consistent blows. Haro's corner ultimately surrendered after six rounds, recognizing the insurmountable challenge. The WBA and WBO titlist is now setting his sights on unifying all four minimumweight titles.

  • On Saturday night, March 15, 2026, in Anaheim, California.

The players

Oscar 'El Pupillo' Collazo

A Puerto Rican boxer who is the current WBA and WBO minimumweight champion, with a professional record of 14-0 and 12 knockouts.

Jesus Haro

Collazo's opponent in the title defense, who had his corner surrender the fight after six rounds.

Amanda Serrano

A Puerto Rican boxer who has recently contributed to the winning streak of Puerto Rican boxers.

Xander Zayas

A Puerto Rican boxer who has also contributed to the recent successes of Puerto Rican boxers.

Bad Bunny

A Puerto Rican musician who has achieved success in a different arena, contributing to the overall narrative of Puerto Rican achievements.

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What they’re saying

“I'm the king of the 105 champions.”

— Oscar Collazo

“Puerto Ricans, we come for everything.”

— Oscar Collazo

What’s next

Collazo's desire to unify the minimumweight titles could lead to exciting matchups with other champions, potentially elevating the division's profile. A unification bout would draw significant attention and solidify Collazo's legacy.

The takeaway

The recent successes of Collazo, Serrano, Zayas, and others suggest a bright future for Puerto Rican boxing. Investing in training programs and providing opportunities for young fighters will ensure a steady pipeline of future champions.