Full name
Yonatan Guzman Pena

Date of birth
July 17, 1989

Debut
On December 18, 2011, in Santiago de los Caballeros, Dominican Republic, he technically knocked out Alejandro Brito in four rounds.

Won The World Title
On July 20, 2016, in Osaka, Japan, he defeated Shingo Wake by technical knockout in 11 rounds and won the vacant International Boxing Federation (IBF) super bantamweight title.

Lost His Title
In his first defense, on December 31, 2016, the Japanese Yukinori Oguni defeated him by unanimous decision, at the Shimazu Arena, in Kyoto, Japan.