Boxer Dusty Hernandez-Harrison held an open workout Monday afternoon in Northwest Washington, five days before he puts his undefeated record on the line. The District welterweight, who became the youngest active professional boxer in the world when he made his debut two years ago, continues to carry himself with a demeanor well beyond his years.

Hernandez-Harrison, 18, shared a few laughs with fellow fighters Mike Reed and Jerry Odom, both of whom also are part of Saturday’s Champions Class card at UDC’s Physical Activities Center, before stepping into the ring at LA Boxing in Foggy Bottom and performing calisthenics that included sit-ups, push-ups and jumping rope.

“I guess I’m pretty calm until I walk into the ring,” Hernandez-Harrison said. “My mom always says I look like a different person coming to the ring. She comes into the dressing room, and I’m just laughing, playing games and stuff.”

Hernandez-Harrison (14-0, eight knockouts) is set to face Puerto Rican Eddie Soto (12-6, four KOs), who fights out of Pawtucket, RI. The bout is scheduled for eight rounds.

Trained by father Buddy Harrison, Hernandez-Harrison has won four of his last six fights by knockout. His last two victories have come via six-round unanimous decision, including most recently over Jonathan Garcia in Dover, Del., April 12.

“If an opportunity for a knockout presents itself, I’ll try to get it,” Hernandez-Harrison said. “I’ve noticed if you try to get the knockout, it almost never happens if you’re really trying.”