Lloyd (Honeyboy) Taylor knocked out Aaron Caldwell in the fifth round of a welterweight fight that highlighted the professional boxing card at the D.C. Armory-Starplex last night before an estimated 5,000 fans.

The card was a lead-in to the closed-circuit showing of the Muhammad Ali-Trevor Berbick fight in Nassau.

Taylor scored often with left jabs to the head, rocking Caldwell in the second and third rounds. Each time Caldwell came back with rights to the body and the head, once staggering Taylor with a right hook in the third.

Taylor hit Caldwell late in the fourth round with a combination that turned around the fight.

"I hit him with a shot to the body and then went upstairs (to the head)," Taylor said. "I knew when he backed up he was in trouble."

Caldwell was hurt but managed to last the round. But in the fifth, Taylor hit Caldwell with a left hook to the head. He then scored with a hard right and finished Caldwell off with a left uppercut that sent him into the ropes with 2:35 left.

The knockout was the seventh in eight fights for the undefeated Taylor.

Kenneth Baysmore of Washington scored a second-round technical knockout over Roland Holland of the Latin Connection Boxing Club of Washington. Baysmore (130 pounds), a 1979 Golden Glove champion, looked impressive despite a two-year layoff.

Light heavyweight Michael Staton of the Latin Connection scored a four-round decision over Robert McConnell; middleweight Herb Wilens knocked out George Coates in the second round, and heavyweight Michael Boxdale knocked out an overweight Ellery Jester in 30 seconds of the first round.