Washington junior lightweight Darryl Tyson pounded James Martinez of Houston for 30 minutes last night and earned a unanimous decision in the feature at D.C. Armory.

For all intents and purposes, the fight was decided in two rounds. By then, Tyson (20-1, 12 knockouts) had scored heavily to the head and body. Only Martinez's strength and endurance enabled him to last 10 rounds.

In the sixth, Tyson mauled Martinez (44-28) on the ropes. Martinez, stumbled, aimlessly threw punches and leaned on Tyson until the bell.

"I came into the fight at 140 (pounds) and he had to come in at least 147," Tyson said. "He laid his weight on me and rested on me and I couldn't throw my combinations.

"I didn't want to knock him out. I wanted to see if I could be strong in the later rounds with a guy who has fought as much as he has."

Tyson continued to punish Martinez with flurries and won with scores of 100-91, 100-90 and 100-85.

Lightweight Al Martino, a Washington left-hander, used his strong right lead to earn a unanimous decision over William Reed of Baltimore in the eight-round cofeature. Martino (13-3-1, one knockout) kept Reed (3-4) at long range.

The five-bout card, which was delayed for one hour 20 minutes while officials awaited the mandatory ambulance, attracted only about 100 spectators.

When the show finally began, junior lightweight Leroy Brooks defeated Floyd Simmons in a four-round unanimous decision.

Brooks (5-1), a Washingtonian, spoiled Simmons' debut in Lanham last month in a fight that could have been scored either way. But there was no doubt last night when Brooks landed combinations, mostly to the body, that wore out Simmons, a Baltimore resident, in two rounds.

In another four-rounder, Washington middleweights Calvin Beatty and Reggie Lee threw plenty of punches, but only Beatty (3-2) landed consistently, mostly from inside; he won unanimously.

Beatty kept Lee (7-5) away with his left. His combinations shook up Lee in the third round, and Lee struggled in the fourth. But Beatty's nonchalant effort allowed Lee to go the distance.

In the third fight, which also matched Washingtonians, Jack Johnson clowned for 3 minutes 41 seconds, then knocked Robert McConnell into the ropes with a right.

McConnell's trainer, Julius Gatlin, stopped the fight 41 seconds into the second round of the scheduled eight-round light heavyweight bout. Johnson is 11-3, three knockouts.

"He just caught me with a good shot . . . " said McConnell (24-3, 12 knockouts).